Question

A triangular table whose sides are in the ratio 3:4:5 and its perimeter is 36 m, then find the area of triangular table.

Answer 1

Sides of table are given as 3 : 4 : 5

i.e. sides are 3x, 4x and 5x

∴Perimeter = 36 m

i.e. 3x + 4x + 5x = 36

⇒ 12x = 36

⇒ x = 3

∴Sides are 

3x = 3 x 3 = 9 m

4x = 4 x 3 = 12 m

5x = 5 x 3 = 15 m

Area of triangular table