Area of a Semicircle Worksheet
Calculate the area of semicircles given various dimensions, applying the formula and understanding its components.
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Area of a Semicircle Worksheet
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Read each question carefully and calculate the area of the semicircles. Use π ≈ 3.14 and round your answers to two decimal places where necessary.
1. Calculate the area of a semicircle with a radius of 7 cm.
2. Find the area of a semicircle if its radius is 10 meters.
3. The formula for the area of a circle is A = πr², so the area of a semicircle is A = .
4. If the diameter of a semicircle is 14 cm, then its radius is cm.
5. What is the approximate area of a semicircle with a diameter of 12 inches?
56.52 sq in
113.04 sq in
28.26 sq in
72 sq in
6. A semicircle has an area of approximately 39.25 cm². What is its radius?
3 cm
5 cm
7 cm
10 cm
7. A circular pizza has a diameter of 16 inches. If you eat half of the pizza, what is the area of the pizza you ate?
8. A garden is shaped like a semicircle with a diameter of 20 feet. What is the area of the garden?