< AXC=? AC = BD, <ABX = <AX B = 50^o, <CAD = 51^o, <AED = 80^o
Source: 2023 South Russian Girls MO - Assara Juniors p2
February 28, 2024
geometrysngles
Problem Statement
In the convex quadrilateral , point is selected on side , and the diagonals intersect at point . It is known that , , , . Find the value of angle .