Practice angles
Angles measure the opening between two lines and appear in triangles, polygons and the real world.
In DinoMath, angle practice is part of the measurement geometry of the adventure.
Practice example
A right angle measures 90° · The angles of a triangle add up to 180°
What you’ll practice
Measure angles
Use a protractor to measure angles in degrees.
Classify angles
Recognize acute, right, obtuse and straight angles.
Complementary and supplementary angles
Calculate angles that add up to 90° or 180°.
Angles in polygons
Add the internal angles of triangles and other polygons.
Practice Mode: Angles
practice.free_hint
Related practice
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Frequently asked questions
What is practicing {topic} in DinoMath?
In DinoMath, practicing {topic} is part of a math adventure. Each explorer solves problems at their own pace, gets help from Tico when stuck, and reinforces the skill with no grade labels or comparisons.
Why practice {topic}?
Practicing {topic} helps consolidate the skill and build confidence for the next challenge. In DinoMath you can practice any skill whenever you need it, without waiting for anyone.
Can I practice {topic} for free?
Yes. DinoMath can be started for free and practice is available in the Practice Zone. You can try the experience before deciding on a subscription.