12 sama 13 di bantu yaa

12. A : B = 5 : 4
total rasio = 9
total = 126 butir
B = 4/9 * 126
=56

13. p pada denah = 3200 : 200 = 16 cm
l pada denah = 2800 : 200 = 14 cm
L = p*l
= 16*14
= 224 cm²

Please, let me answer your question :)
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5 + 4 = 9

Telur ayam = 5/9 x 126 = 70
Telur bebek = 4/9 x 126 = 56

Jadi yg B jawabannya.

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PS : 32 m > 3200 cm
LS : 28 m >2800 cm
S : 1:200 > 1/200
Ditanya= LPD?

PP= S x PS
PP= 1/200 x 3200
PP= 16 cm

LP= S x LS
LP= 1/200 x 2800
LP= 14 cm

LPD= p x l
LPD= 16 x 14
LPD= 224 cm²

Jadi yg D jawabannya.

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Hopefully this is the best for you :)

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