Question

two congruent triangles are cut from a rectangle. Find the area of the shaded region round to the nearest tenth if necessary

Answer 1

Area of the shaded region =

Area of the Big Rectangle - Area of the Two Triangles

( 16 x 12 ) - ( 2 x 1/2 x 8 x 6 )

192 - 48

= 144 in^2