Question

Question 1A circular mirror has a circumference of 30(pi). What is the area of the mirror?• 30(pi) square inches• 60(pi) square inches• 225(pi) square inches• 900(pi) square inchesQuestion 2 This question has two parts A circle has a radius of 6 meters, as shown. Which of the following is closest to the circumference, in meters of the circle? (use 3.14 for (pi)• 18.8 • 37.7• 59.2• 113.0The picture is for question 2

Answer 1

The circumference of a circle is given by:

`C=\pi D`

where D is the diameter of the circle.

We know that the diameter's length is equatl to two times the radio, then the diameter for this circle is 12 meters.

Therefore, the circumference of the circle is:

`C=3.14\cdot6=18.84`

Then, the closest option is 18.8.