H 14cm Luas now ALipidoen cm 62 = diketahui subut oc Tentulean suht B...?
Penjelasan dengan langkah-langkah:
1. Luas juring AOB = 45°/360° x 22/7 x 14²
= ⅛ x 22 x 14/7 x 14
= 22 x 2 x 2 x 7/8
= 88/8 x 7
= 11 x 7
= 77 cm²
2.
AC/BC = 180°/45°
80/BC = 4
BC = 80/4
BC = 20 cm
3.
sudut B = ½ x 62
sudut B = 62/2
sudut B = 31°
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