Area of Circles, Half Circles and Composite Shapes (Year 10)
Free printable NZ Year 10 maths worksheet: find areas of circles, semicircles, quarter circles and composite shapes with circular parts, exactly in pi and with pi ~ 3.14.
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Grade 9 · Math worksheet
Name
Date
Math
Area of Circles, Half Circles and Composite Shapes
Find each area. Give exact answers as multiples of pi where asked, and use pi ~ 3.14 for decimal answers.
- 1.Find the area of a circle with radius 10 cm. Give your answer as an exact multiple of pi, and as a decimal using pi ~ 3.14.
- 2.Find the area of a circle with radius 2 cm. Give your answer as an exact multiple of pi, and as a decimal using pi ~ 3.14.
- 3.Find the area of a circle with radius 8 cm. Give your answer as an exact multiple of pi, and as a decimal using pi ~ 3.14.
- 4.Find the area of a circle with diameter 8 cm. Give your answer as an exact multiple of pi, and as a decimal using pi ~ 3.14.
- 5.Find the area of a circle with diameter 22 cm. Give your answer as an exact multiple of pi, and as a decimal using pi ~ 3.14.
- 6.Find the area of a semicircle (half circle) with radius 6 cm. Give your answer as an exact multiple of pi, and as a decimal using pi ~ 3.14.
- 7.Find the area of a semicircle (half circle) with radius 16 cm. Give your answer as an exact multiple of pi, and as a decimal using pi ~ 3.14.
- 8.Find the area of a quarter circle with radius 6 cm. Give your answer as an exact multiple of pi, and as a decimal using pi ~ 3.14.
- 9.A running-track shape is made of a 28 m by 24 m rectangle with a semicircle of radius 12 m attached to one 24 m end. Find the total area using pi ~ 3.14.
- 10.A running-track shape is made of a 25 m by 16 m rectangle with a semicircle of radius 8 m attached to one 16 m end. Find the total area using pi ~ 3.14.
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