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Mapel : Matematika
Tentang :
- Bangun Datar
- Bangun Ruang
Pertanyaan yg diajukan : 3
Pembahasan :

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Diketahui :

- Persegi Panjang :
• l = 25 cm
• p = 45 cm

- Segitiga :
• a = 25 cm
• t = 75 - 45 = 30 cm

Ditanya :
- Luas Total

LPP = p x l
LPP = 25 x 45
LPP = 1125 cm²

LS = ½ x a x t
LS = ½ x 25 x 30
LS = 25 x 15
LS = 375 cm²

L Total : 1125 + 375
L Total : 1500 cm²

Jawaban : A

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Diketahui :
- Bangun : ¼ lingkaran
- d = 70 cm
- r = 35 cm

Ditanya :
- Luas

L = ¼ x πr²
L = ¼ x 22/7 x 35 x 35
L = ¼ x 22 x 5 x 35
L = ¼ x 110 x 35
L = ¼ x 3850
L = 962,5 cm²

Jawaban : C

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Diketahui :
- s = 120 cm

Ditanya :
- Volume (Liter)

V = s³
V = s x s x s
V = 120 x 120 x 120
V = 14.400 x 120
V = 1.728.000 cm³

V = 1.728.000 : 1000
V = 1.728 Liter

Jawaban : A

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Hopefully this is the best for you.

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Heil Manstein!