Question

Triunghiul  ABC cu m( <A) = 90, are AB = 4 cm si TgB = 2. Sa se calculeze aria acestui triunghi

Answer 1

tgB=AC/AB
2=AC/4
AC=4*2=8
Aria =AC*AB/2
Aria=4*8/2=16cm²
as simple as that!!!
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