Jika sudut aob 120 derajat dan jari jari 7cm berapakah luas juring aob???
Noven99
Lj AOB = 120/360 x 22/7 x 49 = 1/3 x 154 Luas Juring AOB = 154/3 cm² = 51 1/3 cm2
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Beta27
Luas juring = α/360 x πr² luas AOB = 120/360 x 22/7 x 7² luas AOB = 1/3 x 22/7 x 49 luas AOB = 1/3 x 22 x 7 luas AOB = 1/3 x 154 luas AOB = 51 1/3 CM²
= 1/3 x 154
Luas Juring AOB = 154/3 cm² = 51 1/3 cm2
luas AOB = 120/360 x 22/7 x 7²
luas AOB = 1/3 x 22/7 x 49
luas AOB = 1/3 x 22 x 7
luas AOB = 1/3 x 154
luas AOB = 51 1/3 CM²