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MAMJ

The answer is b) 89.95in.

To work out the perimeter P of a semicircle you need to use the formula for the circumference of a circle divided by two plus the diameter.

P = \(\pi\)d/2 + d
   = 3.14*35/2 + 35
   =109.9/2 + 35
   = 54.95 + 35
   = 89.95in

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