The length of each side of a triangle is 12 cm. What is the length of the circumradius of the triangle?
Show answer & explanation
Correct answer: D
Explanation
The correct answer is Option 4 i.e. 4√3 cm.
We know that,
Circumradius (R) of an equilateral triangle, R = (a/√3),
where, a = length of a side of the equilateral triangle
Now, according to the question
⇒ R = 12/√3
⇒ R = 12/√3 × √3/√3
⇒ R = 12/3 × √3
⇒ R = 4√3 cm
Hence, the length of the circumradius of the triangle is 4√3 cm