9. Shapes and angles

9.01 Points, lines and rays

9.02 Angles within a circle

9.03 Angles and angle types

EXPLORE: Draw angles

9.04 Right angles

9.05 Estimate angles

9.06 Measure and compare angles

9.07 Angles on a straight line

9.08 Angles at a point

9.09 Classify 2D figures

United States of America FL

Grade 4

9.03 Angles and angle types

Interactive practice questions

Select the $right angle$ :

A

B

C

D

Easy

< 1min

Select the $acute angle$ :

Easy

< 1min

Select the $obtuse angle$ :

Easy

< 1min

Select the $right angle$ :

Easy

< 1min

Outcomes

MA.4.GR.1.1

Informally explore angles as an attribute of two-dimensional figures. Identify and classify angles as acute, right, obtuse, straight or reflex.

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