Question

1) Draw an angle ABC of measure 80". Construct the angle bisector
BD of 2 ABC using a compass and ruler.
Measure<ABC and<DBC​

Answer 1

Answer:

the measurement of the angle ABC is 80. as given in upper section of an question

and the angle DBC will be 40.

because angle ABC is bisected by line DB

into angles ABD and DBC

therefore, angle DBC =80/2 =40.