Jawaban

Soal Nomor 1

V = plt + ½.a.t.tp

V = 20.6.6 + ½.6.4.20

V = 20.36 + 24.10

V = 720 cm³ + 240 cm³

V = 960 cm³

Lp = 2( pt + lt ) + at + tp( a + 2s )

Lp = 2( 20.6 + 6.6 ) + 6.4 + 20( 6 + 10 )

Lp = 2( 120 + 36 ) + 24 + 20( 16 )

Lp = 2( 156 ) + 24 + 320

Lp = 312 + 344

Lp = 656 cm²

Soal Nomor 2

V = ⅔.π.r³ + πr²t

V = ⅔.22/7.7³ + 22/7.7².5

V = ⅓.44.49 + 22.35

V = ⅓ × 2.156 cm³ + 770 cm³

V = 718⅔ cm³ + 770 cm³

V = 1.488⅔ cm³

Lp = πr² + πdt + 2πr²

Lp = 22/7.7² + 22/7.14.5 + 2.22/7.7²

Lp = 22.7 + 22.10 + 22.14

Lp = 22.31

Lp = 682 cm²

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