Seudónimo
Seudónimo
20-04-2018
Mathematics
contestada
please help, thank you.
Respuesta :
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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