, which is 2.5 square meters.
The answer to this is -4 and +13.
When you've got a negative number, this means that only one can be a negative number, and it is usually the smaller one.
-4*13= -52
-4+13= 9
Hope this helps :)
341 is the correct anwser
R = C / (2 * pi)
r = 125.6 / (2 * 3.14)
r = 125.6 / 6.28
r = 20 <== the radius
diameter of a circle is twice the radius......2 * 20 = 40 <== diameter