use n equals 22 over 7 find the area of a circle with a radius of 7
that 'n' is actually the Greek letter π which is equal to 3.1416... but since in the problem π = 22/7 , we use this value.
recall that the area of a circle is given by
A = π*r^2
where
r = radius
substituting,
A = π*(7^2)
A = (22/7)(49)
A = 22*7
A = 154 square units
hope this helps~ :)
To find the area of a circle, we can use the formula A = πr^2, where A represents the area and r represents the radius of the circle.
In this case, the radius is 7.
Substituting the values into the formula, we have A = π(7)^2.
Since you mentioned using n as an approximation for π, we can rewrite the formula as A = (22/7)(7)^2.
Now, we can simplify the formula:
A = (22/7)(49)
To evaluate the expression, we multiply 22/7 by 49:
A = 22/7 * 49
A ≈ 154.
Therefore, the approximate area of the circle with a radius of 7, using n = 22/7, is 154 square units.