NO Date: 28 cm Tentukan Keliling don Luas bangun di samping! waktunya 5 menit ya. rodm 15 dna. v am3. 23 dm.
Penjelasan dengan langkah-langkah:
1). K = 2.π.r
K = 2 × 22/7 × 14 × ½
K = 2 × 22 × 2 × ½
K = 88 × ½
K = 44 dm
L = π.r²
L = 22/7 × 14 × 14 × ½
L = 22 × 2 × 14 × ½
L = 44 × 14 × ½
L = 616 × ½
L = 308 dm
.
2). V = v1 + v2
V = (p.l.t) + (p.l.t)
V = (11,5.10.30) + (11,5.10.15)
V = 3.450 + 1.725
V = 5.175 dm³
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