Definition Of Angle

An angle is formed by two rays with a common endpoint (called the vertex).

Examples of Angle

• In the figure shown, angle AOB is formed by the rays OA and OB with a common endpoint O.

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Video Examples: All things Angles GCSE Maths Foundation exam worked examples

Solved Example Clockple on Angle

Ques: How many angles are formed by three rays with a common vertex?

Choices:

A. 3
B. 2
C. 1
D. 4
Correct Answer: A

Solution:

Step 1: The figure shown has three rays PQ, PR, and PS with a common vertex P.

Step 2: The angles formed by these 3 rays are QPR, RPS, and QPS.
Step 3: So, three rays can form 3 angles.

Related Worksheet

• Points,-Lines,-Line-Segments,-Rays-and-Angles-Gr-4
• Classifying-Angles-Gr-4