Whats the side????
Geometry
Level
1
Find the length of the side of a equilateral triangle inscribed in a circle of radius 4 cm?
Hint: 1) take the value of root 3 as 1.73
2) The answer is a 3 digit decimal
The answer is 6.92.
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1 solution
let the one side of the triangle be c, using cosine rule c^2=a^2+b^2-2abcosC
where a and b is the radius of the circle and C is 120