Angles on a straight line
Angles next to each other on a straight line add up to 180 degrees.
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Two straight lines cross. One of the angles measures 147°. How many degrees is an angle next to it on a straight line?
Answer: 33
Two straight lines cross. One of the angles measures 149°. How many degrees is an angle next to it on a straight line?
Answer: 31
Two straight lines cross. One of the angles measures 36°. How many degrees is an angle next to it on a straight line?
Answer: 144
Tip: Angles next to each other on a straight line add up to 180 degrees.
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