Nomor 1-5 Sekolah Dasar Jawaban saja tampa cara

1) L = π × r²
= 22/7 × 10,5 × 10,5
= 346,5 cm² ( D )

2) V = La × t
2.592 cm³ = 216 cm² × t
t = 2.592 ÷ 216
t = 12 ( D )

3) L1 = ½ × a × t
= ½ × 8 × 15
= 60 cm²
L2 = π × r²
= 22/7 × 3,5 × 3,5
= 38,5
Lb = 60 - 38,5
= 21,5 cm² ( B )

4) L1 = ½ × ( a + b ) × t
= ½ × (9 + 16) × 14
= ½ × 25 × 14
= 175 cm²
L2 = ½ × π × r²
= ½ × 22/7 × 7 × 7
= 77 cm²
Lb = 175 + 77
= 252 cm² ( A )

5) L1 = p × l
= 10 × 5
= 50 cm²
L2 = ½ × a × t
= ½ × 11 × 10
= 55 cm²
Lt = 50 + 55
= 105 cm² ( A )