The lengths of the sides of a triangle are d+1, 2d and 3d. The sum of the degree measures of the three interior angles of the triangle is-

The lengths of the sides of a triangle are d+1, 2d and 3d. The sum of the degree measures of the three interior angles of the triangle is-

A 6d+1

B 60d

C 90

D 180

Solution

Correct Answer: Option D