GSPL = √ a² - ( R - r )²
25 = √ 24² - ( 10 - r )²
25² = 24² - ( 10 - r )²
625 = 576 - ( 10 - r )²
625 - 576 = ( 10 - r )²
49 = 10² - r²
49 = 100 - r²
r² = 100 - 49
r = √51
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GSPL = √ a² - ( R - r )²
25 = √ 24² - ( 10 - r )²
25² = 24² - ( 10 - r )²
625 = 576 - ( 10 - r )²
625 - 576 = ( 10 - r )²
49 = 10² - r²
49 = 100 - r²
r² = 100 - 49
r = √51
I2=k2-(R-r)2
25pangkat2=24pangkat2-(10-r)pangkat 2
625=576-(10-r)pangkat 2
-(10-r) pangkat 2=576-625
-(10-r) pangkat 2=-49
10-r=akar 49
10-r=7
-r=7-10
-r=-3
r=3
jadi, p,jari jari lingkaran ke dua adalah 3
maaf agak berantakan
semoga mudah dimengerti