GE♡METRI
Persegi BEST
sisi s = 8 cm
∆LOV siku di V
Jari-jari lingkaran besar = r
LO² = LV² + VO²
(r + 2)² = 2² + (8 - r)²
(r + 2)² - (8 - r)² = 4
10(2r - 6) = 4
r = (6 + 4/10)/2
r = 6,4/2
r = 3,2 cm
Luas lingkaran biru
= πr²
= 3,14 × 3,2²
= 32,1536 cm²
" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
Verified answer
GE♡METRI
Persegi BEST
sisi s = 8 cm
∆LOV siku di V
Jari-jari lingkaran besar = r
LO² = LV² + VO²
(r + 2)² = 2² + (8 - r)²
(r + 2)² - (8 - r)² = 4
10(2r - 6) = 4
r = (6 + 4/10)/2
r = 6,4/2
r = 3,2 cm
Luas lingkaran biru
= πr²
= 3,14 × 3,2²
= 32,1536 cm²