Calculate the area of a circle whose diameter is 7m (take π=22/7)
The formula for the area of a circle is given by A = πr^2, where r is the radius of the circle. Since the diameter of the circle is 7m, the radius is half of that, which is 7/2 = 3.5m.
Substituting the value of the radius into the formula, we have:
A = (22/7)(3.5)^2
= (22/7)(12.25)
= 38.5m^2
Therefore, the area of the circle is 38.5 square meters.
To calculate the area of a circle, we can use the formula:
Area = π * (radius)^2
Given that the diameter is 7 meters, we can find the radius by dividing the diameter by 2:
Radius = 7m / 2 = 3.5m
Now, we can substitute the value of π and the radius into the formula:
Area = (22/7) * (3.5m)^2
= (22/7) * (3.5m * 3.5m)
= (22/7) * 12.25m²
= 38.5m²
Therefore, the area of the circle is 38.5 square meters.