Heron`s Formula...

The perimeter of an isosceles triangle ABC is 40 cm. If AB = BC = a cm and AC = 10 cm, then what is the area of the triangle?

Palavi has a toy of the given shape.



How much area does the toy cover?

Find the area of a triangle whose sides are 10 cm, 12 cm and 10 cm.

Find the area of an isosceles triangle with base 6 cm and the length of each equal side as 5 cm.

If the sides of a triangle are 25 cm, 39 cm and 56 cm, then find the altitude to its longest side.

In a parallelogram ABCD, AB = 8 cm, BC = 7 cm and BD = 5 cm. The area of the parallelogram is

ABC is a scalene triangle. If AB = 6 cm, BC = 5 cm and AC = 3 cm, then the area of the triangle is

In a parallelogram ABCD, AB = 13 cm, BC = 10 cm and AC = 9 cm. The area of the parallelogram is equal to

In ABC, AB = 8 cm, BC = 7 cm and AC = 5 cm. The area of the triangle is

Rani made a Rangoli design, which had eight triangles of the same dimensions. How much area does the Rangoli pattern cover?

In ABC, AB = 7 cm, BC = 6 cm and AC = 3 cm. The area of the triangle is

If a side of a rhombus is 8 cm and length of one of its diagonals is 10 cm, then its area is

In MNP, MN = 7 cm, NP = 10 cm and MP = 11 cm. The area of MNP is equal to

What is the total area of the given figure if all the six triangles are of the same dimensions?

Amit wants to cover the given pattern with tiles. How many tiles will he need if one tile covers an area of ?