College of Admission Tests Multan

Triangles

Solve the question of Triangles and select the option from the choices A through D/E. Check your Answer and view the explanation.

Question: 1

The angles of a triangle are in the ratio 1 : 5 : 6. This triangle is
  • acute
  • obtuse
  • isosceles
  • right
  • equilateral

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Correct Answer: D

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.