Jawaban:
30 cm
Penjelasan:
K = a + b + c
= 4 + 11 + 15
= 30
jadi, keliling segitiga tersebut adalah 30 cm
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Jawaban:
30 cm
Penjelasan:
K = a + b + c
= 4 + 11 + 15
= 30
jadi, keliling segitiga tersebut adalah 30 cm