Express the required calculation in terms of pi
and then round to the nearest tenth.
How much fencing is required to enclose a circular garden whose radius is 30
meters?
The formula for the circumference of a circle is C = 2πr, where r is the radius.
Thus, the fencing required to enclose a circular garden with a radius of 30 meters would be:
C = 2π(30)
C = 60π
Rounding to the nearest tenth, the answer is:
C ≈ 188.5 meters
To calculate the circumference of a circular garden, you can use the formula C = 2πr, where C is the circumference and r is the radius.
Substituting the given radius of 30 meters into the formula, we have:
C = 2π(30)
Simplifying this equation:
C = 60π
To round the answer to the nearest tenth, approximate the value of π to 3.14:
C ≈ 60 × 3.14
C ≈ 188.4
Therefore, approximately 188.4 meters of fencing is required to enclose the circular garden.