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I need the answer.Help me out

I need the answer.Help me out-example-1

1 Answer

5 votes

The answer is
\boxed{7}, where
a=5 and
b=2.

Solution sketch:

Apply the Pythagorean theorem to find
EC and
AE, which you then use to find
AD and
BC. Apply Heron's formula to
\triangle ABC to find that its area is 10, and then use
[ABC]=((AB)(CF))/(2) (base times height over 2) to finish by solving for
CF..

User AceKYD
by
6.0k points
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