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MCQ Geometry - Triangles

The CAT Online Free Test Prep MCQs Geometry - Triangles

Geometry: Triangles

Question:

The angles of a triangle are in the ratio 1 : 5 : 6. This triangle is
Option A:      acute
Option B:      obtuse
Option C:      isosceles
Option D:      right
Option E:      equilateral
  A     B     C     D     E  
Show/Hide Answer and Explanation

Correct Answer: D

Explanation Video

Explanation

Represent the angles as x, 5x, and 6x. They must add to 180°.

12x = 180

x = 15

The angles are 15°, 75°, and 90°. Thus, it is a right triangle.
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How to Solve Triangles

For Triangles question first understand the statement and the question stem. Try to solve and click the corresponding answer option. The drop down will appear to show the correct answer and explanation.