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    Question

    Find the area of a figure consisting of a rectangle with

    length 8 cm and width 5 cm, and a semicircle with a diameter equal to the width of the rectangle. (Use π = 3.14)
    A 54.25 cm² Correct Answer Incorrect Answer
    B 49.8 cm² Correct Answer Incorrect Answer
    C 60.70 cm² Correct Answer Incorrect Answer
    D 65.14 cm² Correct Answer Incorrect Answer

    Solution

    Area of rectangle = 8 × 5 = 40 cm² Area of semicircle = (1/2)πr² = (1/2) × 3.14 × (5/2)² = 9.8 cm² Total area = 40 + 9.8 = 49.8 cm².

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