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= 1/2 * 10 * 24
= 10 * 12
= 120 cm²
keliling = 4 * sisi
sisi = √(1/2*10)² + (1/2*24)²
= √5²+12²
= √25+144
= √169
= 13 cm
keliling = 4*13
= 52 cm
=10.24/2
=240/2
=120 cm²
mencari sisi
√5²+12²
√25+144
√169
13 cm
kll.=4s
=4.13
=52 cm