Question

in the given figure ABCD is a square ∆bce is an equalateral triangle find the measures of angle dec ​

Answer 1

Answer:

D=40° C=120° E=20°

Step-by-step explanation:

Angle sum property of Triangle is what I used

Tag brainliest please I gave u the right answer

Answer 2

Answer:

15°

Step-by-step explanation:

look, CD = BC = CE ( coz it is a eq. triangle and a sq.)

so, in triangle DCE

CD = CE

and angle DCE = 90 + 60 = 150

so as we know that, angles opp. to equal sides are equal

that's why,

angle CDE = angle CED = x

so,

angle CDE + angle CED + angle DCE = 180

x + 150 + x = 180

2x = 30

x = 15°