Question

Find the area of the triangle whose sides are 4 cm, 8cm and the perimeter is 20 cm

MAKE SURE TO GIVE THE CORRECT ANSWER

Answer 1

Primeter of triangle = a + b + c

= 4 + 8 + x

20 = 12 + x

x = 20 - 12

= 1/2 X 8 X 4

= 16 cm