Question

Find the Area of the Shaded Region. Triangle A = bh/2. Rectangle A = bh

Answer 1

Answer:

Step-by-step explanation:

From the diagram in the image attached:

Base of triangle = $20cm - ( 4 + 3)cm$

Base of triangle = $20 - 7 = 13cm$

Height = 9cm

Area of triangle = (0.5) × base × height

Area of triangle = $0.5 \times 13 \times 9 = 58.5cm^2$

Area of rectangle = Length × width

Area of rectangle = $20 \times 9 = 180$

Shaded area = area of rectangle - area of triangle

Shaded area = $180cm^2 - 58.5cm^2$

Shaded area = $121.5cm^2$