Topics
9. Shapes and angles
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United States of AmericaFL
Grade 4

9.07 Angles on a straight line

Lesson
Practice

Interactive practice questions

What is the total measure of angles on a straight line?

$90^\circ$90°

A

$180^\circ$180°

B
Easy
< 1min

Do the angles in the diagram add to $180^\circ$180°?

Easy
< 1min

Find the size of the missing angle.

Easy
< 1min

Find the size of the missing angle.

Easy
< 1min
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Outcomes

MA.4.GR.1.2

Estimate angle measures. Using a protractor, measure angles in whole-number degrees and draw angles of specified measure in whole-number degrees. Demonstrate that angle measure is additive.

MA.4.GR.1.3

Solve real-world and mathematical problems involving unknown whole-number angle measures. Write an equation to represent the unknown.

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