A) The equation for circumference is C=2piR. So Filling in for circle A we have 28.26=2*pi*4.5 so we want to isolate pi which I'm gonna call x for it's easier for me xD. So we're gonna start by dividing 4.5 from each side which is gonna leave us with 6.28=2*x which gives you x(pi)= 3.14. For circle B we have 15.70=2*x*2.5 isolate x by first dividing 2.5 which leaves us again with 6.28=2x and x= 3.14.
B) The equation for area is A=piR^2. So again for circle A we have 63.585=x9^2. This one is harder but also are you sure that the area is 63.585 it's supposed to be 254.469 (We'll come back to this)
C) The observation you can make about the value of pi for circles A and B is that it stays consistent at 3.14
I dont know
trying asking your teacher
ofc i can help! hold up m y mom is vcalling
The area of a shape is the amount of space it occupies
The complete statement is: First, break the irregular polygon into shapes whose area you can find using familiar formulas. The sum of these areas is the area of the polygon.
<h3>How to determine the area of an irregular polygon</h3>
An irregular polygon contains several familiar shapes.
So, the first thing to do is to break the polygon into smaller shapes
Then calculate the areas of these shapes
Lastly, add the areas of the shapes to get the area of the irregular polygon
Hence, the area of an irregular polygon is the sum of the areas of the shapes that make up the irregular polygon
Read more about areas at:
brainly.com/question/24487155
