The angles of a triangle are in an A.P. If the greatest angle is twice the least, find all the angles.

The angles of a triangle are in A.P. and the greatest angle of the triangle is double the least angle, find the greatest angle in radians.

The angles of a triangle are in the ratio 2:3:7. find the three angles.

The angles of a triangle are in A.P. and the greatest is 84^@ . Find all the three angles in radians.

The sides of a triangle are in AP. If the angles A and C are the greatest and smallest angle respectively, then 4 (1- cos A) (1-cos C) is equal to

If the sides of a triangle are in A.P., and its greatest angle exceeds the least angle by alpha , show that the sides are in the ratio 1+x :1:1-x , , where x = sqrt((1- cos alpha)/(7 - cos alpha))

If the angles of a triangle are in the ratio 3:4:5, then the greatest angle in radians is:

The angles of a traingle are in the ratio 2:3:4. find the angles of the triangle.

Two angles of a triangle are 30^@ and 80^@ . Find the third angle.

Angles of a triangle are in the ratio 2:4:1 smallest angle of the triangle is

The angle of triangle A, B, C are in AP and C=3A . Find angle B