keliling=15+20+20+15=70cm
Jawab:
a.70
Penjelasan dengan langkah-langkah:
mencari sisi miring
sisi miring 1 = 20 × 2 = 40
sisi miring 2 = √12²+9²= 15 × 2 = 30
40 + 30 = 70
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keliling=15+20+20+15=70cm
Jawab:
a.70
Penjelasan dengan langkah-langkah:
mencari sisi miring
sisi miring 1 = 20 × 2 = 40
sisi miring 2 = √12²+9²= 15 × 2 = 30
40 + 30 = 70