Question 13
In the diagram below, ABCD is a square, ∠CDE = 72° and ∠CED = 54°. Find the angle ∠EAD.
**Editorial note for this self-study exercise:** E lies inside square ABCD, as shown. Enter ∠EAD in degrees, without the degree sign. Do not infer extra incidence relations from the not-to-scale drawing.
**Editorial note for this self-study exercise:** E lies inside square ABCD, as shown. Enter ∠EAD in degrees, without the degree sign. Do not infer extra incidence relations from the not-to-scale drawing.