How to find the area of an equilateral triangle

Practice Questions

ACT Math › How to find the area of an equilateral triangle

Questions
6
1

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

Triangleinscribedincircle2

2

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

Circleinscribedintriangle

3

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

4

A circle contains 6 copies of a triangle; each joined to the others at the center of the circle, as well as joined to another triangle on the circle’s circumference.

The circumference of the circle is

What is the area of one of the triangles?

5

What is the area of an equilateral triangle with a side length of 5?

6

What is the area of an equilateral triangle with a perimeter of ?

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