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= 1/2 . 16 .10 = 80
segitiganyaa ada 4, jadii 80 x 4 = 320 (B)
=√ 64 + 36
= √ 100
= 10
Luas sisi tegak = 1/2 x a x t
= 1/2 x 16 x 10
=80
karena sisi tegaknya ada 4 jadi dikali 4 = 4(80) 320