Question

Caranya dong please no 33

Answer 1

L² = p² + (R-r)²
d² = p² + (R+r)²

15² = 25² + (R-r)²
(R-r)² = 625 - 225 = 400
R-r = 20

7² = 25² + (R+r)²
(R+r)² = 625 - 49 = 576
R+r = 24

R+r = 24
R-r = 20
------------  -
  2r = 4
    r = 2

R-2 = 20
R = 22

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