Mensuration

irspow · 2021-01-26 06:08:52

I’d like to add a big thank you for posting all the questions too.

Last edited by irspow (2021-01-26 06:14:47)

Jai Ganesh · 2021-01-26 15:10:00

Hi,

irspow wrote:

I’d like to add a big thank you for posting all the questions too.

My pleasure, irspow!

Solution M#616 : Excellent!

M#617. All the edges of a square pyramid are of equal lengths. If the length of the base is 30 centimeters,
(a) find the slant height.
(b) find the lateral surface area.

irspow · 2021-01-27 07:13:48

Jai Ganesh · 2021-01-27 14:14:44

Hi,

.

Excellent!

M#618. The slant height of a frustum of a cone is 4 cm and perimeter (circumference) of its circular ends are 18 cm and 6 cm. Find the curved surface area of the frustum.

irspow · 2021-01-29 08:14:28

Last edited by irspow (2021-01-29 11:00:33)

Jai Ganesh · 2021-01-29 14:45:29

Hi,

Excellent!

M#619. A circular sheet of radius 18 centimetres is divided into 9 equal areas.
(a) Find the measure of the central angle of a sector.
(b) Find the slant height of a cone which can be made by a sector.

irspow · 2021-01-30 09:53:22

Jai Ganesh · 2021-01-30 14:11:16

Hi,

Neat work!

M#620. The base area of a cone is

cm and curved surface area is . Calculate the total surface area.

irspow · 2021-01-31 07:44:05

Jai Ganesh · 2021-01-31 14:36:50

Hi,

Good work!

M#621. What is the change in volume of a sphere if its radius becomes three times?

irspow · 2021-02-01 08:17:52

Jai Ganesh · 2021-02-01 15:11:41

Hi,

Neat work!

M#622.

irspow · 2021-02-03 05:25:20

Jai Ganesh · 2021-02-03 14:19:14

Hi

Neat work!

M#623. A rectangular park 100 m by 20 m has a gravel path 2 m wide on all four sides, outside the path. Find the area of the path.

irspow · 2021-02-04 07:35:05

Jai Ganesh · 2021-02-04 14:51:06

Hi,

Neat work!

M#624. A rectangular field 172 m by 58 m has a path of uniform width, inside all the four sides.Find the width of the path.

irspow · 2021-02-05 06:44:02

Jai Ganesh · 2021-02-05 14:16:41

Hi,

Edited : M#624. A rectangular field 172 m by 58 m has a path of uniform width, inside all the four sides. The area of the path is 1125 square metres. Find the width of the path.

Inconvenience regretted.

irspow · 2021-02-07 05:22:37

Jai Ganesh · 2021-02-07 14:46:49

Hi,

Excellent!

M#625. The ratio of the length and breadth of a room is 3 : 1. If the height of the room is 13 meters while the area of its four walls is 1664 square meters, then find the area of the ceiling.

irspow · 2021-02-08 07:29:17

Jai Ganesh · 2021-02-08 13:59:33

Hi,

Neat work!

M#626. The area of a rectangular field is 0.5 hectare. If the field is 5 kilometers long, then find the width of the field.

irspow · 2021-02-09 05:54:36

Jai Ganesh · 2021-02-09 14:59:28

Hi,

Neat work!

M#627. The perimeter of the floor of a room is 18 meters. What is the area of the walls of the room, if the height of the room is 3 meters?

irspow · 2021-02-10 05:36:41

Math Is Fun Forum

#1026 2021-01-26 06:08:52

Re: Mensuration

#1027 2021-01-26 15:10:00

Re: Mensuration

#1028 2021-01-27 07:13:48

Re: Mensuration

#1029 2021-01-27 14:14:44

Re: Mensuration

#1030 2021-01-29 08:14:28

Re: Mensuration

#1031 2021-01-29 14:45:29

Re: Mensuration

#1032 2021-01-30 09:53:22

Re: Mensuration

#1033 2021-01-30 14:11:16

Re: Mensuration

#1034 2021-01-31 07:44:05

Re: Mensuration

#1035 2021-01-31 14:36:50

Re: Mensuration

#1036 2021-02-01 08:17:52

Re: Mensuration

#1037 2021-02-01 15:11:41

Re: Mensuration

#1038 2021-02-03 05:25:20

Re: Mensuration

#1039 2021-02-03 14:19:14

Re: Mensuration

#1040 2021-02-04 07:35:05

Re: Mensuration

#1041 2021-02-04 14:51:06

Re: Mensuration

#1042 2021-02-05 06:44:02

Re: Mensuration

#1043 2021-02-05 14:16:41

Re: Mensuration

#1044 2021-02-07 05:22:37

Re: Mensuration

#1045 2021-02-07 14:46:49

Re: Mensuration

#1046 2021-02-08 07:29:17

Re: Mensuration

#1047 2021-02-08 13:59:33

Re: Mensuration

#1048 2021-02-09 05:54:36

Re: Mensuration

#1049 2021-02-09 14:59:28

Re: Mensuration

#1050 2021-02-10 05:36:41

Re: Mensuration

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