Quadrilaterals · Class 9 · CBSE Mathematics
In a parallelogram ABCD, if angle A = 3x - 10^circ and angle C = 2x + 30^circ, find the measure of angle A.
Practice question from Quadrilaterals (Class 9 · CBSE Mathematics), with the correct answer and a step-by-step solution.
medium · MCQ · Q-724785
In a parallelogram , if and , find the measure of .
- A.40°
- B.70°
- C.110°Correct answer
- D.140°
Solution
Opposite angles of a parallelogram are equal. Therefore, , which gives . Substituting back, .
More from Quadrilaterals
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- The line segment joining the mid-points of any two sides of a triangle is:
- Which of the following is NOT a property of a parallelogram?
- The angles of a quadrilateral are in the ratio 3:5:9:13. Find the measure of the largest angle.
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