Pairs of angles, parallel lines and transversal, angle sum property of triangle.
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Q1 · Lines and Angles (Class 9) · EASY
Two complementary angles are in the ratio 2:3. The smaller angle is:
Q2 · Lines and Angles (Class 9) · EASY
Two parallel lines are cut by a transversal. If one of the alternate interior angles is 72°, what is the measure of its corresponding angle?
Q3 · Lines and Angles (Class 9) · MEDIUM
In the given figure, two straight lines AB and CD intersect at point O. If ∠AOC = 3x + 10° and ∠BOD = 5x - 30°, find the value of x.