9.1.2 Developing Formulas for Circles and Regular Polygons − Practice
1. Find the area of T in terms of π .
2. Find the circumference of W given that A = 121 y 2 π ft 2 .
3. Find the diameter of J , given that A = 625 π in 2 .
4. An artist is drawing three large circles on the ground with diameters of 6 m, 10 m, and 13 m. Find the area of each circle rounded to the nearest tenth of a meter.
5. Find the area of a regular pentagon with side length 11 cm. Round to the nearest tenth.
6. Find the area of a regular octagon with side length 13 ft rounded to the nearest tenth.
118
Made with FlippingBook - PDF hosting