Kids Math

Glossary and Terms: Angles

Acute angle - Any angle smaller than 90°.
Adjacent angles - Adjacent angles are two angles that share a common vertex and one common side. They do not overlap.
In the picture to the right, angles ∠cad and ∠cab are adjacent angles. |

In the picture below, a and b are alternate exterior angles as are c and d.

In the picture below, a and b are alternate interior angles as are c and d.

In the picture below, a and d are corresponding angles as are c and b.

Example of an exterior angle

Example of an inscribed angle

Example of supplementary angles: ∠cbd and ∠dba are supplementary angles.

Algebra glossary

Angles glossary

Figures and Shapes glossary

Fractions glossary

Graphs and lines glossary

Measurements glossary

Mathematical operations glossary

Probability and statistics glossary

Types of numbers glossary

Units of measurements glossary

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