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4x(1/2xaxt)
4x(1/2x10x13)
4x65
=260 cm^2
Tinggi segitiga = √ 5²+12²
= √25+144
= √169
= 13 cm
Jumlah luas sisi tegak = 4 x 10 x 13 : 2
= 260 cm²
*jadikan jawaban terbaik ya