Ratio of the angles of a triangle are 1

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Target Exam

CUET

Subject

General Test

Chapter

Numerical Ability

Topic

Ratios

Question:

Ratio of the angles of a triangle are 1 : 2 : 6. What is the smallest angle?

Options:

30 degree

40 degree

20 degree

45 degree

Correct Answer:

20 degree

Explanation:

Ratio of angles = 1 : 2 : 6

Sum of all angles of a triangle = 180° = 9r

⇒ 1r = 20°

The smallest angle = 20 degree