SOLUTION: An equilateral triangle is inscribed in a circle of radius 10cm ,
Find the area of triangle ??
pleas helppp???????
Algebra.Com
Question 1112131: An equilateral triangle is inscribed in a circle of radius 10cm ,
Find the area of triangle ??
pleas helppp???????
Answer by ikleyn(52781) (Show Source): You can put this solution on YOUR website!
.
The area of a regular triangle equals
= ..cos(60°).sin(60°) = ... = ,
where is the radius of the circumscribed circle.
See the lesson
- Area of a regular n-sided polygon via the radius of the circumscribed circle, Example 1
in this site.
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