Jawabanmu

2014-04-14T20:56:52+07:00
(1/2 x 5 x 13 ) x13 = 32.5 x 13 =422.5
5,12,13
1/2*12*5 = 30
v = la * t = 30*13 = 390
2014-04-14T22:35:33+07:00
T^2=13^2-5^2
=169-25
=√144=12
luas alas=a.t.1/2
=5.12/2=30
V=luas alas.tinggi
=30.13
=390.
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