Question

PLEASE HURRY
Circle A has a diameter of 7 inches, a circumference of 21.98 inches, and an area of 38.465 square inches. The diameter of circle B is 6 inches, the circumference is 18.84 inches, and the area is 28.26 square inches.

Part A: Using the formula for circumference, solve for the value of pi for each circle. (4 points)

Part B: Use the formula for area and solve for the value of pi for each circle. (4 points)

Part C: What observation can you make about the value of pi for circles A and B? (2 points)

Answer 1

so we know pie equals 3.14

Answer 2

Interesting question because it wants you to try to "discover" the value of pi.

We know that Circumference = pi * (diameter)
This means that in (Part A) we can do: Circumference divided by Diameter = pi

Circle A: What is 21.98 divided by 7 = ?
Circle B: What is 18.84 divided by 6 = ?

Answer 3

The two answers to the above comment will be your answers for Part A

Answer 4

OK

Answer 5

\(\color{#0cbb34}{\text{Originally Posted by}}\) @NottheMonga2087
part a 21.98/7
Pi= 3.14
part b 18.84/6
pi=3.14 remember that
\(\color{#0cbb34}{\text{End of Quote}}\)

Answer 6

ok

Answer 7

part c pi has a value of 3.14 in all cases

Answer 8

We know that Area of a Circle = pi * (radius) * (radius)
This means we find the radius using the diameter, then pi = (Area) divided by ( radius x radius )

Circle A: radius = 3.5
What is (38.465) divided by (3.5 x 3.5) = ?
be careful with parentheses

Circle B: radius = 3
What is (28.26) divided by (3 x 3) = ?

Answer 9

The above comment will get you your answers for part B

Answer 10

part C
pi equals 3.14
it will be the same for both circles and is the same for every Circle

Answer 11

did that answer your question

Answer 12

i tried i suck at math

Answer 13

yes it did ThANK YOU both

Answer 14

your welcome! ;]