1) In concave equilateral pentagon ABCDE, Angle A is qual to Angle B is equal to 90 degrees. What is the degree measure of angle E?
2) Alex thinks 131 degrees are neat. What is the maximum number of interior angles of a convex n-gon that can have measure 131 degrees?
1) In concave equilateral pentagon ABCDE, Angle A is qual to Angle B is equal to 90 degrees. What is the degree measure of angle E?
I believe we have something like this :
Angle A = B = 90° and the pentagon is equilateral
If we connected EC, triangle DEC is equilateral.....so angle DEC = 60°
And angle AEC = 90°
And angle AED = AEC - DEC = 90° - 60° = 30° = angle E