Area of a Semicircle Worksheet

This worksheet focuses on calculating the area of semicircles, including problems involving radius, diameter, and real-world applications, suitable for Grade 11 math students.

Grade 11 Math GeometryArea of a Semicircle

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Includes

3 Short AnswerFill in the BlanksMultiple ChoiceTrue / False

Standards

CCSS.MATH.CONTENT.7.G.B.4

Topics

mathgeometryareasemicirclegrade 11

8 sections · Free to use · Printable

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Area of a Semicircle

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Read each question carefully and calculate the area of the semicircle. Show all your work. Use π ≈ 3.14 where necessary.

1. Calculate the area of a semicircle with a radius of 7 cm.

2. A semicircle has a diameter of 18 meters. What is its area?

3. The formula for the area of a full circle is A = πr². Therefore, the formula for the area of a semicircle is A = .

4. If the diameter of a semicircle is 20 inches, its radius is inches.

5. Which of the following best approximates the area of a semicircle with a radius of 5 cm?

78.5 cm²

39.25 cm²

157 cm²

25 cm²

6. A circular pizza with a diameter of 14 inches is cut exactly in half. What is the area of one of the semicircular pieces?

7. Doubling the radius of a semicircle will double its area.

True

False