Name: __________________________________
Geometry: _________ Date: ___________
Area and Circumference of a Circle
For all problems use pi = 3.14. Round answers to the nearest tenth.
1a. The radius of a circle is 2.5 yd. Calculate
its area.
1b. The diameter of a circle is 1.8 mm.
Calculate its area.
2a. The circumference of a circle is 9.7 cm.
Calculate its area.
2b. The area of a circle is 5.2 yd2. Calculate its
circumference.
3a. The area of a circle is 6.4 m2. Calculate its
circumference.
3b. The circumference of a circle is 2.3 in.
Calculate its area.
4a. The circumference of a circle is 2.9 in.
Calculate its area.
4b. The radius of a circle is 8.6 ft. Calculate its
area.
5a. The radius of a circle is 3.6 m. Calculate its
area.
5b. The circumference of a circle is 7.1 ft.
Calculate its area.
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Find each measure. Use pi = 3.14. . Round answers to the nearest tenth.
6.
7.
8.
9.
Find the missing measurements of each circle. Use pi = 3.14.
10. – 12.
13. – 15.
16. – 18.
19. – 21.