185,515 views
4 votes
4 votes
 GEOMETRY)

In the figure, chords AB and CD intersect at E. If the measure of arc AC is 30 degrees and the m angle DEB=80^o , then find the degree measure of arc DB

Enter just a number for your answer

(Picture is below) thank you!

 GEOMETRY) In the figure, chords AB and CD intersect at E. If the measure of arc-example-1
User Adamclerk
by
2.6k points

1 Answer

18 votes
18 votes

Answer: 130

Explanation:

Let the measure of arc DB be x.

Then,


80=(x+30)/(2)\\\\160=x+30\\\\x=130

 GEOMETRY) In the figure, chords AB and CD intersect at E. If the measure of arc-example-1
User Vlad Vinnikov
by
2.8k points