smi4771
Answered

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need help on this, dont know how to do it

Need Help On This Dont Know How To Do It class=

Sagot :

SenorMathWiz

Answer:

100.48 inches

Step-by-step explanation:

Essentially the distance a circle covers after a rotation is the same as the length of the circumference ( outline of the circle ).

So basically we need to find the circumference and multiply that by 2 ( because we are looking for the distance covered by the wheel after 2 rotations )

Circumference = 2πr

where r = radius

the given radius is 8, so r = 8

we then plug in the value of the radius into the formula for circumference

C = 2πr

r = 8 and π = 3.14 ( approximately )

C = 2(8)(3.14)

2 * 8 = 16 and 16 * 3.14 = 50.24

So one rotation covers a distance of 50.24 inches

2 rotations cover 50.24 * 2 = 100.48 inches

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