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In the figure shown, ABCD is a square and CDE is equilateral. What is the degree measure of CBE?

 

 Feb 12, 2021
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We notice that the angle of the square is 90 degrees, the angle measure of a equilateral triangle is 60 degrees, so therefore $BCE$ is $30 degrees$,

the square side and the equilateral triangle side are the same, so therefore $CE=BC$, making it isoceles

 

$180-30-2x=0$

x=75

 

$75$

 Feb 12, 2021

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