|
1. Find the circumference of the circle. Leave in terms of π.
• 8 ft C= π ft 2. Find the circumference of the circle. Leave answer in terms of π.
• 3 cm C= π cm 3. Find the area of the circle. Leave your answer in terms of π.
• 15in A= π in2 4. Find the area of the circle. Leave your answer in terms of π.
• 2.5m A= π m2 5. Find the circumference of the circle. Leave your answer in terms of π.
• 2x in C= π in 6. If the circumference of a circle is 20π inches, what is the area of the circle? 400π sq inches 100π sq inches 20π sq inches 200π sq inches 7. Find the circumference of the circle. Round to the nearest tenth.
16cm C= cm 8. Find the measure of the central angle of a regular octagon. degrees Equilateral Triangle = 9. Match the measure of a central angle with the correct regular polygon below. Pentagon = Hexagon = Square = 90o ? 120o ? 72o ? 60o ? 10. Find the apothem of the regular hexagon below if it has a side length of 6 cm. Round to the nearest tenth. apothem = 11. Find the area of a regular pentagon with side lengths 6 ft. (nearest tenth) Area = ft2 12. Find the area of a regular hexagon with side lengths 20 ft. Round to the nearest tenth. Area = ft2 13. Find the area of a regular pentagon if it has a side length of 7 inches and an apothem of length 4.5 inches. (nearest hundredth) square inches 14. Find the apothem of a regular nonagon with side lengths 12 ft. Round to the nearest tenth. ft |