Question

problem 16: (first taught in lesson 30) find x and y. after you enter your answer press go. x = y =

Explanation:

Step1: Find x in left - hand triangle

In the left - hand triangle, the sum of interior angles of a triangle is $180^{\circ}$. One angle is $60^{\circ}$ and another is $90^{\circ}$. So $x=180 - 90 - 60=30$.

Step2: Find y in right - hand triangle

In the right - hand triangle, the sum of interior angles of a triangle is $180^{\circ}$. One angle is $40^{\circ}$ and another is $90^{\circ}$. So $y = 180-90 - 40=50$.

Answer:

$x = 30$, $y = 50$