Angles and Arcs, Circumference and Area

• ∠LI

• ∠DQE

• ∠EQG

• ∠UQW

• 115°

• 65°

• 44°

• 46°

Find the measure of the arc or central angle indicated.

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Answer: ________

• 70°

• 50°

• 120°

• 100°

• 20°

• 22°

• 21°

• 19°

Solve for x. Show all the works.

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• 38°

• 37°

• 39°

• 36°

Solve for x. Show all the works.

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• 28.9 cm

• 14.4 cm

• 29.0 cm

• 15.0 cm

Find the circumference of the circle. Use your calculator's value of pi . Find the exact and the estimated, round answer to the nearest tenths.

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• 47.1 km

• 42.4 km

• 52.4 km

• 45.0 km

What is the length of an arc with a radius of 10 km and a central angle of 270°? Show the exact and estimated value, round answer to the nearest tenths.

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• 22.0 ft

• 11.0 ft

• 21.9 ft

• 10.9 ft

Calculate the area of a circle with a radius of 5 cm. Use π in your calculator and round your answer to the nearest tenth.

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• 78.5 cm²

• 75.0 cm²

• 80.0 cm²

• 76.5 cm²

Find the area of a circle with a diameter of 22 km. Use π in your calculator and round your answer to the nearest tenth.

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• 380.1 km²

• 379.9 km²

• 380.0 km²

• 381.7 km²