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Solve the right triangle. round to the nearest tenth.
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Solve the right triangle. round to the nearest tenth.

Solve the right triangle. round to the nearest tenth.-example-1
User Talha Ahmad Khan
by
8.0k points

1 Answer

3 votes

Answer:

AB=15

cos<A=3/4

Explanation:

AB=
\sqrt{9^(2)+ 12^(2) } =√(81+144)=√(225)=15

CB=
\sqrt{AB^(2)+AC^(2) -2*AB*AC*cos < A}

144=306-216*cos<A

cos<a=3/4

User Luca Reghellin
by
7.1k points
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