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Mapel Math
Bab Kesebangunan

Penyelesaian :
Luas juring (lingkaran)
= 45/360 × phi × r^2
= 1/8 × 22/7 × 14 cm × 14 cm
= 1/8 × 616 cm
= 77 cm^2

Luas juring (lingakaran)
= 45/360 × phi × r^2
= 1/8 × 22/7 × 7 cm × 7 cm
= 1/8 × 154 cm
= 19,25 cm^2

Luas yang diarsir
= 77 cm^2 - 19,25 cm^2
= 57, 75 cm^2
Opsi D

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