Question

DEC is an equlitrel traingle in a square ABCD . if BD and CE intersect at O and angle CDO =X° cind the value of X​

Answer 1

Step-by-step explanation:

Assuming ABCD is the square, and E is the 3rd tip of the equilateral triangle located inside this square: angle BDC = ODC= 45 degrees (formed by a diagonal of the square, BD, with the side of the square, DC); angle OCD = ECD = 60 degrees, because it’s one of the equilateral triangle’s angles. So, in triangle OCD, what is left to make up the difference to 180 degrees? x = 180 -45 -60.