Jawaban:
K = 2 x ( a + b )
= 2 x ( 21 + 15 )
= 2 x 36
= 72cm
Penjelasan:
K = s1 + s2 + s3 + s4
K = 15 + 21 + 15 + 21
K = 30 + 42
K = 72 cm (c)
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Jawaban:
K = 2 x ( a + b )
= 2 x ( 21 + 15 )
= 2 x 36
= 72cm
Penjelasan:
K = s1 + s2 + s3 + s4
K = 15 + 21 + 15 + 21
K = 30 + 42
K = 72 cm (c)