Question

A shape is made of 12 right triangles of equal size each triangle has a base of 4 cm and a height of 5 cm what is the total area in square meters of the shape

Answer 1

the formula for the area of a triangle is 1/2 (base x height) so 1/2 of 20 is 10 ,you do 10 times 12 which is 120. So the area is 120 sq cm.