Jawaban:
8 cm
Penjelasan dengan langkah-langkah:
Lp= 2(pl+pt+lt)
516 cm²= 2(15 cm × 6 cm + 15 cm × t + 6 cm × t)
258 cm²= 90 cm²+ 21 cm × t
168 cm²= 21 cm × t
t= 168 cm²/21 cm
t= 8 cm
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Jawaban:
8 cm
Penjelasan dengan langkah-langkah:
Lp= 2(pl+pt+lt)
516 cm²= 2(15 cm × 6 cm + 15 cm × t + 6 cm × t)
258 cm²= 90 cm²+ 21 cm × t
168 cm²= 21 cm × t
t= 168 cm²/21 cm
t= 8 cm