how to find x, y

Asked by sakshimksingh | 5th Jan, 2020, 05:58: PM

Expert Answer:

begin mathsize 16px style In space increment ABD space and space increment CDB comma
CD thin space equals space AB
straight m angle CDB space equals space straight m angle DBA space... left parenthesis alternate space angles right parenthesis
BD space equals space BD
rightwards double arrow triangle ABD space approximately equal to increment CDB space space space... space left parenthesis SAS space criteria right parenthesis
straight m angle CBD space equals space straight m angle BDA space space left parenthesis corresponding space angles space of space cogruent space triangles right parenthesis
rightwards double arrow straight x space equals space 50 degree
BC space equals space AD space left parenthesis corresponding space sides space of space cogruent space triangles right parenthesis
rightwards double arrow straight y space minus space 10 space equals space 3 straight y space minus space 20
rightwards double arrow 2 straight y space equals space 10
rightwards double arrow straight y space equals space 5

end style

Answered by Yasmeen Khan | 6th Jan, 2020, 11:31: AM