Question 1
Two angles sit on a straight line. One is 125°. What is the other?
Find a missing angle on a straight line
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Question 2
Two angles sit on a straight line. One is 5°. What is the other?
Question 3
Two angles sit on a straight line. One is 120°. What is the other?
Topic quiz
Five questions on this topic, marked at the end. No hints and no answers along the way — that is what makes the result mean something.
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