Question

ABCD.is a kite if angle BCD 40 degree find angle BDC and angle ABC

Answer 1

triangle BDC is isosceles that is why angle DBC and angle BDC will be equal

sum of all the angles of the triangle=180*

let the angle be x

then,

BDC + DBC + BCD =180

40 + 2x =180
x=70*