" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2025 KUDO.TIPS - All rights reserved.
l = persekutuan luar = 14 cm
R = jari-jari lingkaran besar = 11 cm
r = jari - jari lingkaran kecil
l² = p² - (R-r)²
24² = 25² - (11-r)²
(11-r)² = 625-576
11-r = √49
11 - r = 7
r = 11 - 7
= 4 cm
Jadi jari-jari lingkaran kecilnya 4 cm
p = 25 cm
r₁ = 11 cm
dit = r₂ = ...?
jwb = l² = p² - ( r₁ - r₂ )²
24² = 25² - ( 11- r₂ )²
( 11 - r₂ )² = 625 - 576
( 11 - r₂ )² = 49
( 11 - r₂ ) = √49
11 - r₂ = 7
r₂ = 11 - 7
= 4
jadi, panjang jari-jari lingkaran yang lain adalah 4 cm.