Question
Easy
BD is the diagonal of parallelogram ABCD such that ∠CBD=12x, ∠ABD=7y, ∠ADB=60° and ∠CDB=28°. Then, the value of 2x+3y is :
1
20°
2
21°
3
22°
4
23°
Question Details
Time to Solve: 12
Exam: CTET
Level/Paper: CTET_P2
Chapter: 2D Geometry
Topic: Parallelograms
Correct Answer
Option C
Explanation
To solve the problem and justify why Option 3 is correct, we need to analyze the angles in the parallelogram ABCD with diagonal BD. Given: - ∠ADB = 60° - ∠CDB = 28° - ∠CBD = 12x - ∠ABD = 7y In a parallelogram, opposite angles are equal, and the sum of angles around a point is 360°. Since BD is a diagonal, it divides the parallelogram into two triangles,…Read More
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