A composite shape has a rectangle (10 cm × 4 cm) with a semicircle on one short side. What is the total area of the shape?
Show answer & explanation
Correct answer: C
Explanation
Length = 10 cm, Width = 4 cm
Area of rectangle = 10 × 4 = 40 cm²
diameter of semicircle = 4 cm
radius = 2 cm
Area of complete circle = 3.14 × 2 × 2 = 12.56 cm²
Area of semicircle = 12.56 ÷ 2 = 6.28 cm²
Total area = 40 + 6.28 = 46.28 cm²