Perimeter/Circumference - TACHS Math
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Find the circumference of a circle with the following radius:
Find the circumference of a circle with the following radius:
In order to find the circumference of a circle we will use the following formula:
In this equation, the variable, 
, represent's the circle's radius.
Substitute in for the circle's radius.
Simplify and solve.
In order to find the circumference of a circle we will use the following formula:
In this equation, the variable,
Substitute in for the circle's radius.
Simplify and solve.
Compare your answer with the correct one above
Find the perimeter of a square with the following side length:
Find the perimeter of a square with the following side length:
Perimeters can be calculated by adding together the side lengths of a polygon. A square has four sides that are all the same length, therefore, we can write the following formula to solve for the perimeter.
We can rewrite this equation as the following:
In these equations the variable, 
, represents side length.
Substitute the known side length and solve.
Perimeters can be calculated by adding together the side lengths of a polygon. A square has four sides that are all the same length, therefore, we can write the following formula to solve for the perimeter.
We can rewrite this equation as the following:
In these equations the variable,
Substitute the known side length and solve.
Compare your answer with the correct one above