But after constructing a `60^@` angle, if one of the arms of the angle is produced in the opposite direction, find the angle formed.

The angle in circle produced by a minor arc is an obtuse angle.

If the sum of two angles is 75^@ and one of them is pi^c/15 , find the order angle in radian.

If one side of a triangle is double the other, and the angles on opposite sides differ by 60^0, then the triangle is

If the sides of a triangle are produced in order, what will be the sum of exterior angles thus formed ?

After reflection, angle of deviation is half of the angle of incidence. Find out the angle of incidence

Express the following angles in terms of a right angle . 60^@

The angles in each of two triangles are in G.P . The least angle of one of them is three times the least angle in the other , and the sum of the greatest angles is (4pi)/3 . Find the circular measures of the angles.

In a right angled triangle the length of the sides containing the righ angle are 3 cm and 4 cm. If the triangle is rotated about its hypotenuse, then two cones will be formed on the opposite side of the same base. Find their total volume.

a straight line makes an angle 45^@ with positive direction of x-axis and 60^@ with positive direction of z-axis. If the line makes and angle theta with positive direction of y-axis then theta is equal to-