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Verified answer
S = a+b+c/2 = 8+7+5/2 = 20/2 = 10L = √s(s-a)(s-b)(s-c)
L =√10(10-8)(10-7)(10-5)
L =√10(2)(3)(5)
L =√300
L = 10 √3 cm^2
*Akar 300 = 10 akar 3
*Jawaban terlampir
Ingat!! Satuannya jangan lupa dikasih, Centi meter / cm.
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