180°: Problem Solving & Reasoning
Mathematics
GCSE Foundation
11 questions
~22 mins
1 views0 downloads
About This Worksheet
A worksheet focused on understanding and applying the concept that angles on a straight line sum to 180°. Suitable for GCSE Foundation students to develop procedural skills and problem-solving techniques.
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Full preview • 11 questions
180°: Problem Solving & Reasoning
Subject: MathematicsGrade: GCSE Foundation
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Untitled Worksheet
Grade GCSE Foundation
A
Practice Questions
Answer all questions. Show your working in the grid spaces provided.
1.
Calculate the value of angle x if it and a 120° angle are on a straight line.
[2 marks]2.
In a straight line, two angles are supplementary. One angle measures 65°. What is the other angle?
[2 marks]3.
On a straight line, angle A is 40°. Find the measure of angle B if A and B are supplementary.
[2 marks]4.
Construct a straight line where one angle is 75°. Mark the other angle on the same line.
[3 marks]5.
Two angles on a straight line add up to 180°. If one angle is 90°, what is the other?
[2 marks]6.
In a diagram, angle X and an angle of 85° are on a straight line. Calculate the measure of angle X.
[2 marks]7.
A straight line forms a 60° angle with a horizontal line. Find the supplementary angle on the same line.
[2 marks]8.
A mirror is placed on a straight line. An incident ray makes a 45° angle with the mirror. What is the angle of reflection?
[3 marks]9.
In a straight line, two angles are marked as 110° and x. Find x.
[2 marks]10.
A straight line has an angle of 130° at one point. What is the measure of the other adjacent angle?
[2 marks]11.
Identify and correct the mistake: An angle of 100° on a straight line is mistakenly written as 80°.
[2 marks]Quick Actions
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Details
- Created
- 1/1/2026
- Updated
- 1/1/2026
- Type
- worksheet