+0

# Math Question

+2
1
627
4
+2401

The goal is to find angle ADE.

I've tried a couple things.

EC = x, and EA = 3x, CD = 2y, and DB = 3y, and tried to find y and x using pythagorean theorum and law of cosines, but that didn't go very well.

I also tried setting that spot as O.

AOB = 180 - 30 - 30 = 120

EOD = 120 from vertical angles

DOB and EOA = 60, which made ODB = 110, and OEA as 100 degrees.

However, I couldn't figure it out from here.

Any suggestions or hints?

Thank you so much for your time,

catmg :))

=^._.^=

May 4, 2021

#1
+3

To calculate this angle, I used trig, Pythagoras's theorem, and the law of cosines.

May 4, 2021
edited by Guest  May 4, 2021
#3
+2401
+1

I understand now.

=^._.^=

catmg  May 4, 2021
#2
+118608
+4

I graphed it to scale and also got 40 degrees.

https://www.geogebra.org/classic/m2kaudea

May 4, 2021
#4
+2401
+2

Thank you for creating the graph, it helped me visualize the angles and line segment ratios better than my messy drawing. :))

=^._.^=

catmg  May 4, 2021