Math Is Fun Forum
You are not logged in.
- Topics: Active | Unanswered
#976 2020-02-29 22:56:05
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 49,408
Re: Mensuration
Hi,
M # 588. The radius of a sphere is r centimeters. It is divided into two equal parts. Find the whole surface area of two parts.
It appears to me that if one wants to make progress in mathematics, one should study the masters and not the pupils. - Niels Henrik Abel.
Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.
Offline
#977 2020-04-01 01:06:35
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 49,408
Re: Mensuration
Hi,
M # 589. If the number of square centimeters in the surface area of a sphere is equal to the number of cubic centimeters in its volume, find the diameter of the sphere.
It appears to me that if one wants to make progress in mathematics, one should study the masters and not the pupils. - Niels Henrik Abel.
Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.
Offline
#978 2020-04-01 15:56:55
- 666 bro
- Member
- From: Flatland
- Registered: 2019-04-26
- Posts: 706
Re: Mensuration
M#589. D=6 units.
"An equation for me has no meaning, unless it expresses a thought of God"- Srinivasa ramanujan
Offline
#979 2020-04-02 00:26:40
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 49,408
Re: Mensuration
Hi,
The solution M # 589 is correct. Good work!
M # 590. A tent constructed in the form of a square pyramid of base perimeter 80 meters and lateral edge 26 meters.
(a) Calculate the slant height of the tent.
(b) Calculate the area of tarpaulin sheet required to cover the lateral faces of the tent.
It appears to me that if one wants to make progress in mathematics, one should study the masters and not the pupils. - Niels Henrik Abel.
Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.
Offline
#980 2020-04-30 23:18:51
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 49,408
Re: Mensuration
Hi,
M # 591. What is the surface area of cone of base diameter 30 centimeters and height 40 centimeters approximately?
It appears to me that if one wants to make progress in mathematics, one should study the masters and not the pupils. - Niels Henrik Abel.
Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.
Offline
#981 2020-05-31 23:17:49
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 49,408
Re: Mensuration
Hi,
M # 592. The base edge of a square pyramid is 8 centimeters, height 3 centimeters. Find the slant height and lateral edge.
It appears to me that if one wants to make progress in mathematics, one should study the masters and not the pupils. - Niels Henrik Abel.
Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.
Offline
#982 2020-07-04 16:49:28
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 49,408
Re: Mensuration
Hi,
M # 593. The base edge of a square pyramid is 6 centimetres, height 4 centimetres, calculate slant height and total surface area.
It appears to me that if one wants to make progress in mathematics, one should study the masters and not the pupils. - Niels Henrik Abel.
Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.
Offline
#983 2020-07-04 18:03:06
- 666 bro
- Member
- From: Flatland
- Registered: 2019-04-26
- Posts: 706
Re: Mensuration
"An equation for me has no meaning, unless it expresses a thought of God"- Srinivasa ramanujan
Offline
#984 2020-07-04 20:23:31
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 49,408
Re: Mensuration
Hi,
Neat work!
M # 594. A sector is folded in such a way as to get a cone. Radius of the sector is 12 centimetres, central angle 120°. Calculate radius and slant height.
It appears to me that if one wants to make progress in mathematics, one should study the masters and not the pupils. - Niels Henrik Abel.
Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.
Offline
#985 2020-07-11 15:56:03
- 666 bro
- Member
- From: Flatland
- Registered: 2019-04-26
- Posts: 706
Re: Mensuration
"An equation for me has no meaning, unless it expresses a thought of God"- Srinivasa ramanujan
Offline
#986 2020-07-11 17:05:47
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 49,408
Re: Mensuration
Hi,
Good work!
M # 595. The central angle of a sector is 90°, radius 16 centimeters, calculate slant height, and radius.
It appears to me that if one wants to make progress in mathematics, one should study the masters and not the pupils. - Niels Henrik Abel.
Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.
Offline
#987 2020-07-17 01:11:10
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 49,408
Re: Mensuration
Hi,
M # 596. Radius of a cone is 4 centimeters, slant height is 2.5 times radius. Calculate the radius and central angle of the sector.
It appears to me that if one wants to make progress in mathematics, one should study the masters and not the pupils. - Niels Henrik Abel.
Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.
Offline
#988 2020-07-18 13:16:56
- 666 bro
- Member
- From: Flatland
- Registered: 2019-04-26
- Posts: 706
Re: Mensuration
"An equation for me has no meaning, unless it expresses a thought of God"- Srinivasa ramanujan
Offline
#989 2020-07-18 14:09:27
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 49,408
Re: Mensuration
Hi,
Neat work!
M # 597. The base perimeter of a square pyramid is 48 centimeters. Slant height is 10 centimeters. Calculate lateral surface area and volume.
It appears to me that if one wants to make progress in mathematics, one should study the masters and not the pupils. - Niels Henrik Abel.
Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.
Offline
#990 2020-07-25 13:53:39
- 666 bro
- Member
- From: Flatland
- Registered: 2019-04-26
- Posts: 706
Re: Mensuration
"An equation for me has no meaning, unless it expresses a thought of God"- Srinivasa ramanujan
Offline
#991 2020-07-25 14:16:23
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 49,408
Re: Mensuration
Hi,
Neat work (both parts)!
M # 598. The height of a square pyramid is 15 centimeters, volume is 1620 cubic centimeters. Calculate total surface area.
It appears to me that if one wants to make progress in mathematics, one should study the masters and not the pupils. - Niels Henrik Abel.
Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.
Offline
#992 2020-08-01 00:05:34
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 49,408
Re: Mensuration
Hi,
M # 599. The height of a cone is 4 centimeters, slant height is 5 centimeters. Calculate total surface area.
It appears to me that if one wants to make progress in mathematics, one should study the masters and not the pupils. - Niels Henrik Abel.
Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.
Offline
#993 2020-08-01 14:43:00
- 666 bro
- Member
- From: Flatland
- Registered: 2019-04-26
- Posts: 706
Re: Mensuration
Last edited by 666 bro (2020-08-01 14:46:14)
"An equation for me has no meaning, unless it expresses a thought of God"- Srinivasa ramanujan
Offline
#994 2020-08-01 16:13:36
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 49,408
Re: Mensuration
Hi,
Neat work!
M # 600. Radius of a cone is 10 centimeters, volume 3140 cubic centimeters. Calculate total surface area.
It appears to me that if one wants to make progress in mathematics, one should study the masters and not the pupils. - Niels Henrik Abel.
Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.
Offline
#995 2020-08-08 14:42:51
- 666 bro
- Member
- From: Flatland
- Registered: 2019-04-26
- Posts: 706
Re: Mensuration
Last edited by 666 bro (2020-08-08 14:43:22)
"An equation for me has no meaning, unless it expresses a thought of God"- Srinivasa ramanujan
Offline
#996 2020-08-08 15:04:30
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 49,408
Re: Mensuration
Hi,
Excellent!
M # 601. A solid sphere of radius 7 centimeters is melted and recast into a cone of same radius of the sphere. Calculate the height of the cone.
It appears to me that if one wants to make progress in mathematics, one should study the masters and not the pupils. - Niels Henrik Abel.
Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.
Offline
#997 2020-08-15 15:14:37
- 666 bro
- Member
- From: Flatland
- Registered: 2019-04-26
- Posts: 706
Re: Mensuration
Last edited by 666 bro (2020-08-15 15:15:02)
"An equation for me has no meaning, unless it expresses a thought of God"- Srinivasa ramanujan
Offline
#998 2020-08-15 19:21:51
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 49,408
Re: Mensuration
Hi,
Good work!
M # 602. A cylindrical vessel has radius 3.5 centimeters and height 20 centimeters. It is filled with water. How many metal spheres of radius 3 centimeters can be placed n it? Calculate the volume of water flows from the vessel.
It appears to me that if one wants to make progress in mathematics, one should study the masters and not the pupils. - Niels Henrik Abel.
Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.
Offline
#999 2020-08-22 16:36:59
- 666 bro
- Member
- From: Flatland
- Registered: 2019-04-26
- Posts: 706
Re: Mensuration
"An equation for me has no meaning, unless it expresses a thought of God"- Srinivasa ramanujan
Offline
#1000 2020-08-22 23:35:58
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 49,408
Re: Mensuration
Hi,
Well tried!
M # 603. Slant height of a square pyramid is 12 centimetres, lateral edge is 13 centimetres. Calculate height.
It appears to me that if one wants to make progress in mathematics, one should study the masters and not the pupils. - Niels Henrik Abel.
Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.
Offline