Yoshi is using a compass to navigate back to base camp. The compass, according to the sporting goods store from which it was purchased, has an area of 12.56 square centimeters. What is the compass's diameter?

Question

Michael Landry

Mathematics

15 January, 19:19

Yoshi is using a compass to navigate back to base camp. The compass, according to the sporting goods store from which it was purchased, has an area of 12.56 square centimeters. What is the compass's diameter?

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Answers (2)

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Helena Trevino · Answer 1

Normally, compasses are circles

you didn't give us a height so we only need to compute the area of the face of the compass

area of circle=pir²

2r=d so

area=12.56

12.56=pir³

aprox pi=3.141592

divide both sides by pi or 3.141592

3.99=r³

sqrt both sides

about 2

2=r

2r=d

2 (2) = d

4=d

diameter is 4cm

Brylee Burke · Answer 2

Im not sure but it looks like you have a bad compass