In a quadrilateral `A B C D` , the angles `A ,\ B ,\ C\ a n d\ D` are in the ratio `1:2:3: 4.` Find the measure of each angles of the quadrilateral.

In a quadrilateral A B C D , the angles A ,\ B ,\ C\ a n d\ D are in the ratio 1:2:3:4 . Find the measure of each angle of the quadrilateral.

In a quadrilateral A B C D , the angles A ,\ B ,\ C\ a n d\ D are in the ratio 1:2:4:5 . Find the measure of each angles of the quadrilateral.

In a quadrilateral A B C D , the angles A ,\ B ,\ C\ a n d\ D are in the ratio 1:2:4: 5. Find the measure of each angle of the quadrilateral.

In a quadrilateral ABCD, angles A, B, C and D are in the ratio 3:2:1:4 Prove that AD is parallel to BC.

In cyclic quadrilateral ABCD,/_A=3/_C and /_D=5 /_B . Find the measure of each angle of the quadrilateral.

In Figure, find the four angles A ,\ B ,\ C\ a n d\ D in the parallelogram A B C D

In a cyclic quadrilateral A B C D , if AB || CD\ a n d\ /_B=70^0, find the remaining angles.

In a cyclic quadrilateral A B C D , if /_A=3 /_C . Find /_A

If the angles A ,\ B\ a n d\ C of a /_\ A B C satisfy the relation B-A=C-B , then find the measure of /_B .

If the diagonals A C ,B D of a quadrilateral A B C D , intersect at O , and seqarate the quadrilateral into four triangles of equal area, show that quadrilateral A B C D is a parallelogram. GIVEN : A quadrilateral A B C D such that its diagonals A C and B D intersect at O and separate it into four parts such that a r( A O B)=a r( B O C)=a r( C O D)=a r( A O D) TO PROVE : Quadrilateral A B C D is a parallelogram.