The measurement of three angles of a quadrilateral are `104.5^@, 65^@, 72.5^@` respectively. Let's write the measurement of the fourth angle.

If the measures of three of a quadrilateral are (pi)/(3),(5pi)/(6) "and" 90^(@) respectively, determine the sexagesimal and circular value of fourth angle.

Let's write the ratio of the three angles of equilateral triangle.

The ratio of the consequtive three angles of a cyclic quadrilateral is 1:2:3 . Calculate the measurement of 1st and 3rd angle.

The three angles of a triangle are x^@, 2x^@ and 3x^@ . Let us find the measure of the greatest angle.

If the measures of three angles of a quadrilateral are (Pi)/(3),(5Pi)/(6) and 90^@ , then determine the fourth angle in sexagesimal and circular measure.

The four angles of a quadrilateral are in the ratio 1: 2:3:4. Find the measure of each angle of the quadrilateral.

The four angles of a quadrilateral are in A.P. The greatest angle is twice the least angle. Find the circular measure of the least angle.

ABCD is a cyclic quadrilateral. If the ratio of three consecutive angles of this quadrilateral be 5 : 6 : 7, the the ratio of the 1 st and 4th angle is