Question

Tolong dong di jawab besok di kumpulin pliss susah banget

Answer 1

A. L. juring = sudut/360 × phi × r × r
= 120/360 × 3,14 × 8 × 8
= 1/3 × 3,14 × 8 × 8
= 200,96 ÷ 3
= 66,99 cm persegi
b. L. segitiga = 1/2 × 8 × 8
= 32 cm persegi
c. L. tembereng = l. juring - l. segitiga
= 66,99 cm persegi - 33 cm persegi = 33,99 cm persegi