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Rasek [7]
3 years ago
13

Please help, thank you.

Mathematics
1 answer:
Gnoma [55]3 years ago
8 0
Lets x = radius 
x^2 + 10^2 = (x+8)^2
x^2 + 100 = x^2 + 16x + 64
16x = 100 - 64
16x = 36
    x = 2.25

answer
B. 2.25
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Circle O had a circumference of 36 2.14 cm. What is the length of the radius, r?
Karo-lina-s [1.5K]

Hello from MrBillDoesMath!

Answer:

r =  = 57.6  (approximately)

Discussion:

Given: circumference of circle O = 362.14

The circumference of a circle of radius r, is given by the formula C = 2 *PI *2.

So we need to find the value of r in

2*Pi*r = 362.14

Divide both sides by 2*PI to get

r = (362.14)/ (2 * Pi)   =   (362.14)/  6.283         (approximately)

                                 = 57.6  (approximately)



Thank you,

MrB

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