Sebuah juring dengan besar sudut 270° dan jari - jari 28 cm. Hitung luas juring tersebut!
clue : Phi x R x R x 270/360
clue : Phi x R x R x 270/360
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Verified answer
Jawaban:
270°/360°=3/4
L=3/4×πr²
L=3/4×22/7×28×28
L=3/4×22×4×28
L=3/4×2.464
L=1.848cm²
Semoga bermanfaat