Finding Missing: Problem Solving & Reasoning
Mathematics
Grade 8
12 questions
~24 mins
1 views0 downloads
About This Worksheet
A worksheet focused on finding missing angles at a point through various problem-solving and reasoning exercises suitable for Grade 8 students.
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Full preview • 12 questions
Finding Missing: Problem Solving & Reasoning
Subject: MathematicsGrade: Grade 8
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Untitled Worksheet
Grade Grade 8
A
Practice Questions
Answer all questions. Show your working in the grid spaces provided.
1.
If three angles at a point are 120°, 45°, and a missing angle, what is the value of the missing angle?
[2 marks]2.
Calculate the missing angle at a point where two angles are 90° and 60°.
[2 marks]3.
At a busy intersection, one angle measures 85° and another 95°. What is the measure of the third angle?
[2 marks]4.
In a diagram, three angles at a point are 70°, 50°, and a missing angle. Find the missing angle.
[2 marks]5.
Construct a diagram where two angles are 110° and 40°, and find the third angle.
[3 marks]6.
A clock shows the hands pointing at 10:10. The angles between the hands are 70° and a missing angle. Find the missing angle.
[3 marks]7.
A quadrilateral has angles at a point measuring 80°, 100°, and 50°. What is the measure of the missing angle?
[2 marks]8.
A diagram shows two adjacent angles of 75° and a missing angle. Find the missing angle assuming they are supplementary.
[2 marks]9.
In a scenario, four angles at a point are given as 90°, 45°, 60°, and a missing one. Determine the missing angle.
[2 marks]10.
Identify and correct the mistake in the following reasoning: 'If two angles are 80° and 100°, the third must be 100°.'
[3 marks]11.
A real-world scenario: Two roads meet at a junction forming angles of 110° and a missing angle. What is the measure of the missing angle?
[2 marks]12.
A challenging problem: Three angles at a point are 95°, 85°, and a missing angle. The angles are part of a figure where adjacent angles are supplementary. Find the missing angle.
[3 marks]Quick Actions
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Details
- Created
- 1/1/2026
- Updated
- 1/1/2026
- Type
- worksheet