Angles in a Triangle Worksheet

Best for: Grades 6–8

The angles add up to 180°

Subtract the two known angles from 180°: if the angles are 50° and 65°, the third is 180° − 115° = 65°.

Make it a timed challenge

Put a visual classroom timer on the board and see how many problems students can finish before the time runs out. Print a new version tomorrow and try to beat the score.

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