Question

Tolong jawab secara detail

Answer 1

A. Juring besar -Juring kecil
45/360 × 3,14 × 11×11 - 45/360×3,14×6×6
1/8×3,14×121 - 1/8×3,14×36
47,4925 - 14,13
33,3625
b. Luas juring- luas segitiga
sudut pusat = 60×2 =120
Tinggi:alas/2:r lingkaran
tripel 3:4:5
12:16:20 (dikali 4)
alas = 16×2 = 32
L juring - L segitiga
120/360×3,14×20×20 - 12×32/2
1/3×1256-192
412,33-192
220,33

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