Standard Mathematics Primary 5 Angles

Ravi draws three rays from a point O on a straight line MN, creating three angles on the same side of the line: 73°, 62°, and angle x. Find angle x.

A 45°
B 107°
C 118°
D 135°
Show Worked Solution

Worked Solution

Step 1: Angles on a straight line sum to 180°. 73° + 62° + x = 180° Step 2: Add the two known angles. 73 + 62 = 135 Step 3: Subtract from 180°. x = 180 − 135 = 45° Answer: 45° Answer: 45°

Correct answer: 45°

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