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Jawaban:
A. t = 13 cm
L = 52 cm²
a = ?
= 2 × L ÷ t
= 2 × 52 ÷ 13
= 8
B. a = 25 cm
L = 125 cm²
t = ?
= 2 × L ÷ a
= 2 × 125 ÷ 25
= 10
C. t = 18 cm
L = 234 cm²
a = ?
= 2 × L ÷ t
= 2 × 234 ÷ 18
= 26
A. a = 14 cm
t = 12 cm
L = a × t ÷ 2
L = 14 × 12 ÷ 2
L = 84 cm²
B. a = 24 cm
t = 17 cm
L = a × t ÷ 2
L = 24 × 17 ÷ 2
L = 204 cm²
C. a = 28 cm
t = 15 cm
L = a × t ÷ 2
L = 28 × 15 ÷ 2
L = 210 cm²
D. a = 6 cm
t = 10 cm
L = a × t ÷ 2
L = 6 × 10 ÷ 2
L = 30 cm²
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