jawab yang benar pls
Jawaban:
12. L = a × t / 2
112 = a × 14 / 2
112 = a × 7
a = 112 / 7
a = 16 cm
13. s = √ 360
s = 18,973 cm
14. L = p × l
L = 16 × 12
L = 192 cm2
15. K = 2 × ( p + l )
K = 2 × ( 12 + 8 )
K = 2 × 20
K = 40 cm²
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