Question

An isosceles triangle has perimeter 30 cm and each of the equal sides is 12 cm. Find
the area of triangle.
Or​

Answer 1

Step-by-step explanation:

The perimeter of the triangle = 30cm

Each of its equal sides = 12cm

Let the one unequal side be x

ATQ => 12cm + 12cm + x = 30cm

=> 24cm + x = 30cm

=> 30cm - 24cm = x

=> 6cm = x

Area of the triangle = 1/2 X base X height

Area = 1/2 X 6 X 12

Area = 36cm