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= √17²-(11-3)²
= √289-64
= √225
= 15 cm
R = 11
r = 3
p = 17 cm
ditanya AB ?
maka :
AB² = P² - (r-R)²
AB² = 17² - (11-3)²
AB² = 289 - 64
AB = √225
AB = 15 CM
jadi panjang AB adalah 15 cm