hannahnn
hannahnn
25-04-2017
Mathematics
contestada
How to find the exact area of this triangle.
Respuesta :
irspow
irspow
25-04-2017
h^2=12^2-(20-12)^2
h^2=144-64
h^2=80
h=√80
A=bh/2
A=20√(80)/2
A=10√80
A=40√5 cm^2
A≈89.44 cm^2 (to the nearest one-hundredth of a cm^2)
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