Step-by-step Answer
PAGE: 765SET: ExercisesPROBLEM: 7
Please look in your text book for this problem Statement

The values are .

From the diagram

                      (Substitute )

Apply cross product property then ad = bc.

                 (Substitute )

Divide each side by .

The given triangle ABC is a right angle triangle so

In a triangle the sum of the angles are

      (Substitute )

Subtract 135 from each side.

The values are .


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