Two point one three :)))))))))
The Formula to find the Area of a circle using the radius is:

r = 8
So:



And you get about 201.06193
So, the area of a circle with a radius of 8 is about 201.06
Hope this Helps :)
Answer:
Boys : 210
girls: 240
Step-by-step explanation:
7+8=15
450/15=30
boys: 30*7= 210
girls: 240
to make sure......
210+240=450
Hello! Your answer was 19! There is no possible way for me to show you how to work this out using base ten blocks! Hopefully you can work it out in your head next time! :)