If the angle is mesure in RADIANS then the arc is given by r. So first convert 81 degrees to radians, then multiply by r which is 10 x 81=810
Answer:
72
Step-by-step explanation:
multiply 18 by 4,
since 100/4 is 25, and four quarters makes a dollar, multiply it by 4
18(4) = 72
the answer to this question is 500 dimples on a golf ball.
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