There is an equilateral triangle of side ‘a’ units. Now we join any two side

Question

There is an equilateral triangle of side ‘a’ units. Now we join any two sides of the triangle to form a cone.What is the radius of the cone formed?

Options:

A . a

B .

\frac{a}{4}

C .

\frac{a}{π}

D . None of these

Answer: Option D
:
D

Circumfrence of the base of cone = 2 $π$ r = side of triangle = a

radius (r) = $\frac{a}{2 π}$

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