Jawaban:
163 cm²
Penjelasan dengan langkah-langkah:
L 1/2 lingkaran= 1/2π×r×r
=1/2×3,14×10×10
=157 cm²
L segitiga= 1/2 alas× t
=1/2×20×8
=80 cm²
L persegi= 20×20=400cm²
L di arsir= 400-157-80=163 cm²
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Jawaban:
163 cm²
Penjelasan dengan langkah-langkah:
L 1/2 lingkaran= 1/2π×r×r
=1/2×3,14×10×10
=157 cm²
L segitiga= 1/2 alas× t
=1/2×20×8
=80 cm²
L persegi= 20×20=400cm²
L di arsir= 400-157-80=163 cm²