Question

Help me plz! I could give you best answer.

Answer 1

area of triangle = 1/2 b x h

per the drawing b = 18 and h = 20

so area of 1 triangle = 1/2 x 18 x 20 = 180 square cm

there are 4 triangles in the picture

so 180 x 4 = 720 square cm total