Nomor 1 :

L = ¾ × πr²

L = ¾ × ²²/7 × 147 mm × 147 mm

L = ¾ × 22 × 21 mm × 147 mm

L = ¾ × 462 mm × 147 mm

L = ¾ × 67.914 mm²

L = 50.935,5 mm²

Opsi D.

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Nomor 2 :

Lp = 2 × ( pl + pt + lt )

Lp = 2 × ((40 cm × 15 cm) + (40 cm × 10 cm) + (15 cm × 10 cm))

Lp = 2 × ( 600 cm + 400 cm + 150 cm )

Lp = 2 × 1.150 cm

Lp = 2.300 cm²

Opsi C.

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Nomor 3 :

V = πr²t

V = ²²/7 × 7 m² × 8,5 m

V = ²²/7 × 7 m × 7 m × 8,5 m

V = 22 × 1 m × 7 m × 8,5 m

V = 22 m × 7 m × 8,5 m

V = 154 m × 8,5 m

V = 1.309 m³

Opsi A.

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Nomor 4 :

V = p × l × t

V = 43 dm × 38 dm × 67 dm

V = 1.634 dm × 67 dm

V = 109.478 dm³

V = 109.478 liter

Opsi C.

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Nomor 5 :

pada koordinat cartesius tersebut, koordinat titik ( 4, -2 ) terletak pada titik C.

Opsi B.