Question

A circle with a radius of 15.4 meters. Which statements are true about the circle shown? Check all that apply. The diameter of the circle is 30.8 m. The circumference in terms of Pi is 30.8Pi m. The circumference of the circle can be found using 2(Pi)(15.4) The approximate circumference of the circle rounded to the nearest tenth is 96.7 m. A little more than 6 diameters could be wrapped around the circle.

Answer 1

Explanation:

the diameter of a circle is simply 2×radius.

2×15.4 = 30.8 m

the diameter is 30.8 m is true.

the circumference of a circle is

2×pi×radius

2×pi×15.4 = 30.8×pi m

the circumference is 30.8pi m is true.

therefore, the circumference can be found using

2(pi)(15.4)

is true.

now, doing the pi multiplication :

30.8 × pi = 96.76105373... m

the approximate circumference is 96.7 m is true.

6 diameters would be

30.8×6 = 184.8 m

that is much longer than the circumference.

so, more than 6 diameters could be wrapped around the circle is false, if we understand it that this is supposed to wrap the circle once without any overhanging remainder.