Question

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Answer 1

Jawaban:

No. 3

a. Lebar

L = p × l

225 = 25 × l

l = 225/25

l = 9 cm

Lebar = 9 cm

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b. Keliling

K = 2(p + l)

K = 2(25 + 9)

K = 2(34)

K = 68 cm

No. 4

a. panjang sisi

K = 4 × sisi

60 = 4 × sisi

sisi = 60/4

sisi = 15 cm

━━━━━━━━━

b. Luas

L = sisi × sisi

L = 15 × 15

L = 225 cm²

━━━━━━━━━━━━━━━━━

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