Question

In the given figure, ABCD is a square and ∆BCE is an equilateral triangle. Find the measure of angle DEC​

Answer 1

Answer:

Step-by-step explanation:

All the angles of the triangle is 60 °

If E is outside the square, ∠DCE = 90 + 60 =150° & if inside ,it is 30°

In Δ DCE , the side DC = CE , and so each one of the other two angles is ( 180 -150) /2 or (180 - 30) /2 = 15° or 75 °