In parallelogram `ABCD` if `(3x -10)^@` `angle B and (2x+10)^@` angle C then find the value of `x`.

In parallelogram ABCD, find angle B, angle C and angle D.

In a parallelogram ABCD if angleA=(3x-20)^(@), angleB=(y+15)^(@) and angleC=(x+40)^(@) , then the values of x and y respectgively are

square ABCD is a parallelogram. If angle A =3x and angle C =120^@ then find the value of x.

If (3x + 15)^@ and (x+5)^@ are suplementatry angles, find the value of x.

In Parallelogram ABCD , angle A=x^@ and B= (3x+20)^@ , then find x.

In the given figure , if AB = BC and angle A = angle C then find the value of x

Two adjacent angles of a parallelograms are (3x-4)^@ and (3x+16)^@ . Find the value of x and hence find the measure of each of its angles.

ABCD is parallelogram if angleA = (4x+13)^(@), angleD=(5x-22)^(@) , then find angleB, angleC .

If ABCD is a parallelogram, then find the values of x and y.