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Triangle ABC is equilateral.  Find x.

 

 Feb 12, 2022

Best Answer 

 #1
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We can find that CD = 8 / 2 = 4.

Using pythagorean theorem, (or 30-60-90 triangles) 8^2-4^2= 64 - 16 =  48. 

√48 = 4√3 = x.

We can also use 4*√3 = 4√3 = x

 Feb 12, 2022
 #1
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0
Best Answer

We can find that CD = 8 / 2 = 4.

Using pythagorean theorem, (or 30-60-90 triangles) 8^2-4^2= 64 - 16 =  48. 

√48 = 4√3 = x.

We can also use 4*√3 = 4√3 = x

Guest Feb 12, 2022
 #2
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Hint: we already know one of the side lengths of the triangle; it's 8. Since it's an equilateral traingle, all of the sides have length 8. Use this along with the area of a triangle formula.

 Feb 12, 2022

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