in figure triangle ABC is an equilateral triangle find the value of x
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where is the figures
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we know in an equilateral triangle
all the angles are equal
thus
3 theta = 180
theta = 60
Thus in triangle ABD
cos theta = AB/BD
Cos 60 = 2x
Thus
2x = 1/2
x = 1/4
all the angles are equal
thus
3 theta = 180
theta = 60
Thus in triangle ABD
cos theta = AB/BD
Cos 60 = 2x
Thus
2x = 1/2
x = 1/4
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