Sum = 180°: Mixed Review
Mathematics
Grade 6
11 questions
~22 mins
1 views0 downloads
About This Worksheet
A comprehensive worksheet reviewing the key concept that the interior angles of a triangle sum to 180°, including procedural practice, reasoning, and real-world applications.
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Sum = 180°: Mixed Review
Subject: MathematicsGrade: Grade 6
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Untitled Worksheet
Grade Grade 6
A
Practice Questions
Answer all questions. Show your working in the grid spaces provided.
1.
Calculate the third angle of a triangle if two angles measure 65° and 70°.
[2 marks]2.
In a triangle, one angle is 90° and another is 45°. What is the measure of the third angle?
[2 marks]3.
Construct a triangle where two angles are 50° and 60°. Use the grid to draw and label the third angle.
[3 marks]4.
A triangle has angles measuring 80° and 45°. Find the third angle.
[2 marks]5.
If one angle in a triangle is three times another, and the third angle is 20°, find the measures of the other two angles.
[4 marks]6.
A triangle has angles of 35°, 75°, and a third angle. Verify if these angles can form a triangle.
[2 marks]7.
Plot a triangle on the grid where one angle is 60°, another is 50°, and the third is 70°. Use the grid for accuracy.
[3 marks]8.
In a triangle, if the angles are 45°, x°, and 90°, find the value of x.
[2 marks]9.
Identify and correct the mistake: 'A triangle with angles 100°, 50°, and 30°.'
[3 marks]10.
A triangle has two angles measuring 65° and 85°. What is the measure of the third angle? Show your working.
[3 marks]11.
Construct an isosceles triangle where the two equal angles are each 70°. Use the grid for drawing.
[3 marks]Quick Actions
What is Remix?
Create a new worksheet based on this one. Change the grade level, topic, number of questions, or difficulty - then generate a fresh version.
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Details
- Created
- 1/1/2026
- Updated
- 1/1/2026
- Type
- worksheet