![If two side of a cycle quadrilateral are parallel. Prove that remaining two sides are equal and both diagonals are equal. If two side of a cycle quadrilateral are parallel. Prove that remaining two sides are equal and both diagonals are equal.](https://dwes9vv9u0550.cloudfront.net/images/5251643/6eeb2c30-dfdb-4bee-98d2-1f8b6fc1c9a2.jpg)
If two side of a cycle quadrilateral are parallel. Prove that remaining two sides are equal and both diagonals are equal.
![Georges Rouault - Des Ongles et Du Bec (abstract female portrait) For Sale at 1stDibs | the iconic bec and bridge Georges Rouault - Des Ongles et Du Bec (abstract female portrait) For Sale at 1stDibs | the iconic bec and bridge](https://a.1stdibscdn.com/georges-rouault-prints-works-on-paper-des-ongles-et-du-bec-abstract-female-portrait-for-sale-picture-8/a_2452/1598667499923/IMG_6270_master.jpg?width=240)
Georges Rouault - Des Ongles et Du Bec (abstract female portrait) For Sale at 1stDibs | the iconic bec and bridge
![Lot - Mary Cassatt (United States) 1844-1926 "The Manicure" (Les Ongles), etching and drypoint, 1908; Breeskin 199, only state; Ed: Unknow... Lot - Mary Cassatt (United States) 1844-1926 "The Manicure" (Les Ongles), etching and drypoint, 1908; Breeskin 199, only state; Ed: Unknow...](https://image.invaluable.com/housePhotos/auctionsappraisers/61/711161/H0150-L269934974_original.jpg)
Lot - Mary Cassatt (United States) 1844-1926 "The Manicure" (Les Ongles), etching and drypoint, 1908; Breeskin 199, only state; Ed: Unknow...
![A, B , and C are three points on a circle with centre O such that BOC = 30^o and AOB = 60^o . If D is a point on the circle A, B , and C are three points on a circle with centre O such that BOC = 30^o and AOB = 60^o . If D is a point on the circle](https://dwes9vv9u0550.cloudfront.net/images/3816155/ef2181aa-2bc9-443f-8369-b538ba6f8e1a.jpg)