contestada

Given right triangle ABC with altitude BD drawn to hypotenuse AC. If AC = 8
and BC = 4, what is the length of DC? (Note: the figure is not drawn to scale.)
A
D
X

Respuesta :

Answer:

6.928, or 4(squareroot3)

Explanation:

a^2+b^2=c^

so, 4^2+b^2=8^2

16+b^2=64

b^2=48

so, DC=6.928, or 4(squareroot3)

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