What is the area of a triangle inscribed in a circle, in terms of the radius R of the circle?

What is the area of a triangle with a circle inscribed inside of it, in terms of the circle's radius R?

Find the perimeter of an equilateral triangle given side length of 2.

Find the perimeter of an equilateral triangle whose side length is .

Find the perimeter of an equilateral triangle whose side length is .

Find the perimeter of an equilateral triangle given side length of 2.

What is the area of a triangle with a circle inscribed inside of it, in terms of the circle's radius R?

What is the area of a triangle inscribed in a circle, in terms of the radius R of the circle?

What is the area of an equilateral triangle with sides of length ?

What is the area of an equilateral triangle with sides of length ?