What is the area of the following circle? Either enter an exact answer in terms of π or use 3.14 for π and enter your answer as a decimal.
the circle is r = 5 as a radius

25 times pi or 78.5 cm squared using 3.14 as pi.

Step-by-step explanation:

 Recall that the area of a circle or the formula is pi times the radius squared. If the radius is 5, to  square means to take it to the power of 2. So 5 times 5 is 25. You have your radius and it is squared, so either put 25pi or change pi to 3.14 and multiply that with 25. You get 78.5 cm squared for doing. Therefore, that is the area of a circle. Hope this helps!

341

step-by-step explanation:

all you have to do is 9x31 (which equals 279) and then 20x31 (which equals 620). then you have to subtract. 620-279=341.

the answer is 13 cm