Question

find the measure if angle R, goven that the largest triangle is a right triangle

Answer 1

Answer:

• 27°

Step-by-step explanation:

Since the largest triangle is right triangle, the vertical segment is the perpendicular bisector of right angle with vertex at the center of circle.

Then we have

• m∠R + 18° = 90°/2
• m∠R + 18° = 45°
• m∠R = 45° - 18°
• m∠R = 27°