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Lines, Triangles and Circles · Question 4 of 67

Question 4

EasyOriginal question

Parallel lines l and m are cut by a transversal. One of the two interior angles on the same side of the transversal is 64°. What is the other one?

Options for question 4

Show the answer and explanation
CorrectNot quiteAnswer C

Correct answer: C

Explanation

  1. Interior angles on the same side of a transversal (co-interior angles) add up to 180° when the lines are parallel.

  2. Other angle = 180∘−64∘=116∘180^\circ - 64^\circ = 116^\circ.

Worth noting

Co-interior angles are supplementary, not equal. 64° would be right for alternate or corresponding angles.

Concept
Co-interior angles between parallel lines are supplementary
Typical time
40 s
Your time
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The rule this testsLines and angles
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