Question

Find the values of x and y.

Answer 1

• x = 90
• y = 43

Explanation:

The marked sides tell you the triangle is isosceles. The marked angles tell you the segment AD is a bisector of the apex angle, so is perpendicular to the base BC. That means angle x° is 90°.

∠DAC is then the complement of 47°, and y° is equal to that, so is ...

y° = 90° -47°

y° = 43°