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In ΔABC, m angle CAB = 60°, AD is the angle bisector of angle BAC with D∈BC and AD = 8ft. Find the distances from point D to the sides of the triangle. PLEASE HELP ME!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

1 Answer

14 votes

As D lies on BC, the distance from D to BC is 0.

If we let the distance from D to AB be x, then in the right triangle,


\sin 30^(\circ)=(x)/(8)\\\\(1)/(2)=(x)/(8)\\ \\ x=4

This means the distance from D to side AB is 4.

We can note that
\sin 30^(\circ)=(x)/(8)=(y)/(8), meaning y=4 as well, and thus the distance from D to side AC is 4

In ΔABC, m angle CAB = 60°, AD is the angle bisector of angle BAC with D∈BC and AD-example-1
User Spyros K
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