tentukan keliling bangun disamping
Menghitung busur = sudut/360 x 2*pi*r
= 1/4 x 2*3.14*10
= 1/2 x 31,4
= 15,7 cm
Keliling = (10x4) + (15,7x2) = 40 + 31,4 = 71,4 cm [answer.2.content]
Jawaban:
K = 4 × s
= 4 × 20
= 80 cm ✅
` done `
Lengkungan di bangun tersebut adalah BusurMenghitung busur = sudut/360 x 2*pi*r
= 1/4 x 2*3.14*10
= 1/2 x 31,4
= 15,7 cm
Keliling = (10x4) + (15,7x2) = 40 + 31,4 = 71,4 cm [answer.2.content]