Question

Bantu jawab nomor 1-3-4 pake cara makasii

Answer 1

No. 1

L segitiga
= 16×12 / 2
= 96 cm²

L lingkaran
= 22/7 × 14 × 14
= 616 cm²

L diarsir
= L lingkaran - L segitiga
= 616 - 96
= 520 cm²

No. 3

L belah ketupat
= 16×16 / 2
= 128 cm²

L persegi
= 16×16
= 256 cm²

L diarsir
= L persegi - L belah ketupat
= 256 - 128
= 128 cm²

No. 4

K = (2 × 2 × 22/7 × 7) + (12 + 12 + 21 + 21)
= 88 + 66
= 154 cm