Question

Determine the area of the composite figure below

Answer 1

• 2772 cm²

Explanation:

Work:

• 2(π x 21 x 21/2) + (π x 42 x 42/4) = Area of figure
• => π x 21 x 21 + (π x 42 x 42/4) = Area of figure
• => (22/7 x 21 x 21) + (22/7 x 21 x 21) = Area of figure
• => 2(22/7 x 21 x 21)
• => 2(22 x 3 x 21)
• => 2772 cm²

Hence, the area of the shape is 2772 cm².