Standard Mathematics Primary 4 Angles

The diagram shows a protractor measuring an angle. What is the size of the marked angle?

A 55°
B 65°
C 75°
D 115°
Show Worked Solution

Worked Solution

Step 1: Identify which arm of the angle lies on the 0° baseline of the protractor. Step 2: Follow the inner scale, counting up from 0° on the same side as the baseline arm. Step 3: Read the number where the other arm of the angle crosses the inner scale. The pointer crosses at 65°. Step 4: The marked angle is 65°. Answer: 65°

Correct answer: 65°

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