02-06-2017
Mathematics

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In the figure below, line AB and line CB are perpendicular. What is the perimeter of triangle ABC

In the figure below line AB and line CB are perpendicular What is the perimeter of triangle ABC class=

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jalalfarooka jalalfarooka

02-06-2017

You can find out BD by using cosine formula which turns out to be 9 cm. Then apply pythagoras theorem on triangle CDA with AD = 5 (14 - 9), to obtain 13 the length of AC. Hence after adding up all the sides perimeter is 42.

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