Question

The clock face in a famous clock tower has a radius of about meters. What is the area of the clock face to the nearest square meter? Use as an approximation for .

Answer 1

Question:

Solution:

The area of a circle of radius r is given by the following formula:

$A=\pi r^2$

In this case, r = 5m. Thus, the area of the clock face would be:

$A=\pi r^2=3.14(5)^2\text{ = 3.14 x 25 = 78.5}\approx\text{ 79}$

then, the correct answer is:

$A=\text{ 79 square meters}$