Estimating Angles

Grade 645 minutes

Learning Objective

I can estimate the measure of angles in degrees using benchmarks like 90° and 180°.

Practice Questions

This lesson includes 7 practice questions to reinforce learning.

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1. What is the benchmark angle that represents a quarter turn?

2. Describe how you can use a 90° angle to help you estimate the size of an angle that is larger than 90°.

3. Estimate the measure of an angle that looks slightly smaller than 180°. Explain your reasoning.

...and 4 more questions

Educational Video

Estimating the size of angles

MathsMasterOrg

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