Discussion about math, puzzles, games and fun. Useful symbols: ÷ × ½ √ ∞ ≠ ≤ ≥ ≈ ⇒ ± ∈ Δ θ ∴ ∑ ∫ π -¹ ² ³ °

You are not logged in.

- Topics: Active | Unanswered

**ganesh****Administrator**- Registered: 2005-06-28
- Posts: 25,371

Hi,

#6502. Find the area of a triangle whose sides are 8 centimeters, 10 centimeters, and 12 centimeters.

It is no good to try to stop knowledge from going forward. Ignorance is never better than knowledge - Enrico Fermi.

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

Offline

**ganesh****Administrator**- Registered: 2005-06-28
- Posts: 25,371

Hi,

#6503. The perimeter of a triangle is 30 centimeters and its are is 30 square centimeters. If the largest side measures 13 centimeters, what is the length of the smallest side of the triangle?

It is no good to try to stop knowledge from going forward. Ignorance is never better than knowledge - Enrico Fermi.

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

Offline

**ganesh****Administrator**- Registered: 2005-06-28
- Posts: 25,371

Hi,

#6504. If the ratio of the altitudes of two triangles be 3:4 and the ratio of their corresponding areas be 4:3, find the ratio of their corresponding lengths of bases.

It is no good to try to stop knowledge from going forward. Ignorance is never better than knowledge - Enrico Fermi.

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

Offline

**ganesh****Administrator**- Registered: 2005-06-28
- Posts: 25,371

Hi,

#6505. Ratio of a side and the corresponding heights is 6:5. If the area of the triangle is 60 square centimeters, find the length of the sides.

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

Offline

**ganesh****Administrator**- Registered: 2005-06-28
- Posts: 25,371

Hi,

#6506. If the sides of a triangle is increased by 30% and the corresponding altitude is decreased by 20%, find the percentage increase in the area of the triangle.

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

Offline

**ganesh****Administrator**- Registered: 2005-06-28
- Posts: 25,371

Hi,

#6507. If the side of a triangle is doubled and the altitude tripled, how many times does the area of the triangle become?

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

Offline

**ganesh****Administrator**- Registered: 2005-06-28
- Posts: 25,371

Hi,

#6508. Base of a triangle is increased by 10%. Area of the triangle remains unchanged. How much its height should be decreased?

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

Offline

**ganesh****Administrator**- Registered: 2005-06-28
- Posts: 25,371

Hi,

.

#6509. Find the inradius of the triangle, whose sides are 18 centimeters, 20 centimeters, and 22 centimeters.

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

Offline

**ganesh****Administrator**- Registered: 2005-06-28
- Posts: 25,371

Hi,

#6510. Find the area of the equilateral triangle whose equal side is 6 centimeters.

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

Offline

**ganesh****Administrator**- Registered: 2005-06-28
- Posts: 25,371

Hi,

#6511. If the altitude of an equilateral triangle is

centimeters, find its area.Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

Offline

**ganesh****Administrator**- Registered: 2005-06-28
- Posts: 25,371

Hi,

#6512. The perimeter of an isosceles triangle is 34 centimeters. If the length of unequal side is 2/5th more than each equal side, find the length of the unequal side.

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

Offline

**ganesh****Administrator**- Registered: 2005-06-28
- Posts: 25,371

Hi,

#6513. Lengths of three sides of a right angled triangle are (x - 2) centimeters, x centimeters, and (x + 2) centimeters, find the value of x.

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

Offline

**ganesh****Administrator**- Registered: 2005-06-28
- Posts: 25,371

Hi,

#6514. If the side perpendicular to each other of a right-angled triangle are 15 centimeters and 8 centimeters, find the perimeter of the triangle.

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

Offline

**ganesh****Administrator**- Registered: 2005-06-28
- Posts: 25,371

Hi,

#6515. The area of an isosceles triangle ABC with AB = AC and altitude = 3 centimeters is 12 square centimeters. What is its perimeter?

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

Offline

**ganesh****Administrator**- Registered: 2005-06-28
- Posts: 25,371

Hi,

#6516. If the altitude of an equilateral triangle is

, then what is its perimeter?Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

Offline

**ganesh****Administrator**- Registered: 2005-06-28
- Posts: 25,371

Hi,

#6517. What is the area of a right-angled isosceles triangle whose hypotenuse is

centimeters?Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

Offline

**ganesh****Administrator**- Registered: 2005-06-28
- Posts: 25,371

Hi,

#6518. If the area of the triangle is 1176 square centimeters and the ratio, base : corresponding altitude, is 3:4. Find the altitude of the triangle.

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

Offline

**ganesh****Administrator**- Registered: 2005-06-28
- Posts: 25,371

Hi,

#6519. The base of a triangle is 15 centimeters and the height is 12 centimeters. Find the height of another triangle of double the area having the base 20 centimeters.

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

Offline

**ganesh****Administrator**- Registered: 2005-06-28
- Posts: 25,371

Hi,

#6520. The sides of a triangle are 3 centimeters, 4 centimeters, and 5 centimeters. Find the area (in square centimeters) of the triangle formed by joining the mid-points of this triangle.

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

Offline

**ganesh****Administrator**- Registered: 2005-06-28
- Posts: 25,371

Hi,

#6521. The hypotenuse of a right-angled isosceles triangle is 5 centimeters. Find its area.

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

Offline

**ganesh****Administrator**- Registered: 2005-06-28
- Posts: 25,371

Hi,

#6522. The lengths of a triangle are are in the ratio 2:3:4. The perimeter of the triangle is 18 centimeters. Find the area of the triangle in square centimeters.

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

Offline

**ganesh****Administrator**- Registered: 2005-06-28
- Posts: 25,371

Hi,

#6523. The height of an equilateral triangle is 15 centimeters. Find the area of the triangle.

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

Offline

**ganesh****Administrator**- Registered: 2005-06-28
- Posts: 25,371

Hi,

#6524. The sides of a triangle are 16 centimeters, 12 centimeters, and 20 centimeters. Find its area.

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

Offline

**ganesh****Administrator**- Registered: 2005-06-28
- Posts: 25,371

Hi,

#6525. The height of a triangle is increased by 40% and the base is increased by 10%. The area of the triangle increases by how much percentage?

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

Offline

**ganesh****Administrator**- Registered: 2005-06-28
- Posts: 25,371

Hi,

#6526. Find the area of a quadrilateral formed by joining the mid-points of the sides of the sides of the quadrilateral of area 160 square centimeters.

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

Offline