bakedgrumpzilla bakedgrumpzilla
  • 15-07-2017
  • Mathematics
contestada

using the formula C=2TTr, find the circumference of a circle with a diameter of 28 in. round your answer to the nearest inch
A. 56in
B. 28 in
C. 44in
D.88in

Respuesta :

musiclover10045
musiclover10045 musiclover10045
  • 15-07-2017

radius = diameter/2

so 28/2=14

 using 3.14 for PI

2*3.14*14 = 87.92 = 88 inches

Answer Link
devonthomashowa
devonthomashowa devonthomashowa
  • 15-07-2017
radius = diameter /2 

so radius = 28/2 = 14 

Circumference = 2 x pi x 14 = 28 pi 

or from calculator = 87.96 inches ....correct to 2 decimal places
Answer Link

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