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timurjin [86]
3 years ago
12

Using the formula C=2TTr, find the circumference of a circle with a diameter of 28 in. round your answer to the nearest inch

Mathematics
2 answers:
Gekata [30.6K]3 years ago
6 0
Radius = diameter /2 

<span>so radius = 28/2 = 14 </span>

<span>Circumference = 2 x pi x 14 = 28 pi </span>

<span>or from calculator = 87.96 inches ....correct to 2 decimal places</span>
slava [35]3 years ago
3 0

radius = diameter/2

so 28/2=14

 using 3.14 for PI

2*3.14*14 = 87.92 = 88 inches

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