The Russian ruble coin has a radius of 10.25 mm. What is the circumference in terms of Pi?
2 answers:
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<u>Given</u>:
Given that Jasmine rides her bike 9 miles in 50 minutes.
We need to determine the speed per hour.
<u>Time per hour:</u>
The time taken is 50 minutes. We need to convert minutes into hours.
Thus, we have;
Thus, the time taken to cover 9 miles is
<u>Speed:</u>
The speed can be determined using the formula,
Substituting the values, we have;
Simplifying, we get;
Thus, Jasmine's speed is 10.8 miles per hour.
<h3>The true statement about circumference of a circle is: circumference is found by multiplying Pi by the diameter</h3>
<em><u>Solution:</u></em>
<em><u>The circumference of a circle is given as:</u></em>
Where,
"r" is the radius of circle
We know that,
<em><u>Thus the circumference can also written as:</u></em>
Thus, the circumference is found by multiplying Pi by the diameter is correct statement