Find the measure of angle a.
45°
50°
85
75°

a = 20°

Step-by-step explanation:

The sum of the interior angles of a triangle = 180°

85° + 75° + a = 180°

160° + a = 180°

a = 180° - 160°

a = 20°

Hope this helps

the formula for the equation of a circle is (x – h)2+ (y – k)2 = r2, where (h, k) represents the coordinates of the center of the circle, and r represents the radius of the circle. if a circle is tangent to the x-axis at (3,0), this means it touches the x-axis at that point.