Jika”AOB:90 derajat dan Jari-jari lingkaran 7cm (π:22/7),maka hitunglah luas juring AOB!

Jawaban:

90/360 × 22/7× 7 ×7

1/4×22/7×49

38,5cm²

Jawaban:

[tex] frac{90}{360} times k \ = frac{1}{4} times ( times frac{22}{7} times 7×7) \ = frac{1}{4} times (154) = 38.5 cm^2