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Verified answer
Panjang busur = sudut pusat / 360 x keliling lingkaran= 135 / 360 x 2.
= 135 / 360 x 2 .22/7 . 28
= 135 / 360 x 176 = 66 cm
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Kelas : 8
Bab : Lingkaran
→ r = 28 cm
→ a = 135°
Panjang busur :
= ( a/360) x Keliling lingkaran
= (135/360) x 2 x π x r
= (3/8) x 2 x 22/7 x 28
= 66 cm ✔