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  • 20-04-2018
  • Mathematics
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please help, thank you.

please help thank you class=

Respuesta :

choixongdong
choixongdong choixongdong
  • 20-04-2018
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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