Question

In the adjoining quadrilateral ABCD ,AO and bo are bisectors of angle A and Angle B respectively prove that angle abc is equals to 1 upon 2 angle C + angle d​

Answer 1

Step-by-step explanation:

quadrilateral have a same angle is 90°

NOW,

A=B=C=D=90°

angle abc=90°

then angle abc=1÷2 (angle. c + angle d)

=1÷2(90+90)

=1÷2 (180)

=90

show that angle abc=1÷2 (angle c+angle d)