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Around point O there is a right angle and two angles $4 x$ and $5 x$ . What is the largest of the three angles?

Class 7Angles Around a PointLines and Angles

A30°
B120°
C135°
D150°

Step-by-Step Solution

90° +

4 x + 5 x = 360

°, so

9 x = 270

° and

x = 30

°. Angles: 90°, 120°, 150°. Largest = 150°. (30° is

x

itself.)

Answer: D) 150°

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