Round Tablecloths
I need help with Geometry !!!?
1. An arc of a circle has a measure of 80 degrees and a length of 88(3.14) cm. what is the diameter?
2. The circumference of a round tablecloth is 100 inches. will the tablecloth cover the top of a table with diameter 30 inches?
3. How far will a wheel of radius 7 cm travel in two revolutions?
4. If the diameter of the moon is 3475 km and an orbiting lunar station is circling 21 km above the lunar surface, find the distance traveled by the lunar station in one orbit.
5. Exactly how far does the tip of a 6-inch minute hand on a clock travel in 40 minutes?
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rthetta=88pi
r=88pi/theta=88pi/(80pi/180)
=198
d=396
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