Answer:
.65
Step-by-step explanation:
Answer:
360
Step-by-step explanation:
A circle has 360 degrees.
Here lesson started at 9 and finished at 10.
This means that her lesson was one hour.
A minute hand makes a full rotation in an hour.
It would have started at 12, and ended back at 12.
This means that it rotated 360 degrees.
Answer:
Area of circle is 
Step-by-step explanation:
Formula for circumference of circle is given as,

Given that C = 15 n cm,
Substituting the value,

Solving above equation for r, divide both side by 

Simplifying,

Formula for area of circle is given as,

Substituting the value of r,

Squaring the parenthesis,

Cancelling out the common term,

Therefore, area of circle in terms of n is 