Answer:
A = 230 cm²
Step-by-step explanation:
The figure is composed of a rectangle ( lower ) and a triangle (upper )
Calculate the area of both parts and sum for area of figure
area of rectangle = length × width
here length = 20 and width = 7 , then
area = 20 × 7 = 140 cm²
area of triangle = [tex]\frac{1}{2}[/tex] bh ( b is the base and h the height )
here b = 20 ( opposite sides of rectangle are equal )
and h = 16 - 7 = 9 , then
area = [tex]\frac{1}{2}[/tex] × 20 × 9 = 10 × 9 = 90 cm²
Then
area of figure = 140 + 90 = 230 cm²
