MHB Find radius, circumference, area and arc length in circle

Click For Summary
The discussion focuses on calculating various properties of a circle, including radius, circumference, area, and arc length. The user successfully determined the radius as 12 inches, circumference as 75.3982 inches, and area as 452.389 square inches. However, they are struggling with the arc length calculation. A participant suggests using the formula for arc length, which involves taking a fraction of the circumference based on the angle in degrees. The conversation emphasizes the importance of expressing answers in terms of π.
Etrujillo
Messages
9
Reaction score
0
So I've been able to solve
A.12 inch
B.24 inch
C.75.3982
D.452.389
Cant solve e. Arc length can anyone please explain the formula. Thank you
 

Attachments

  • 20181204_093318-1-1.jpg
    20181204_093318-1-1.jpg
    14.4 KB · Views: 110
Mathematics news on Phys.org
Etrujillo said:
So I've been able to solve
A.12 inch
B.24 inch
C.75.3982
D.452.389
Cant solve e. Arc length can anyone please explain the formula. Thank you
So far so good.

You know that the circumference is 75.3982 in, then how much is 105/360 of it?

-Dan
 
Note that the instructions say to express your answers in terms of \(\pi\). :)
 
I have been insisting to my statistics students that for probabilities, the rule is the number of significant figures is the number of digits past the leading zeros or leading nines. For example to give 4 significant figures for a probability: 0.000001234 and 0.99999991234 are the correct number of decimal places. That way the complementary probability can also be given to the same significant figures ( 0.999998766 and 0.00000008766 respectively). More generally if you have a value that...

Similar threads

Replies
4
Views
5K
  • · Replies 8 ·
Replies
8
Views
2K
  • · Replies 7 ·
Replies
7
Views
2K
Replies
7
Views
3K
  • · Replies 7 ·
Replies
7
Views
5K
  • · Replies 3 ·
Replies
3
Views
2K
  • · Replies 2 ·
Replies
2
Views
2K
  • · Replies 2 ·
Replies
2
Views
2K
  • · Replies 10 ·
Replies
10
Views
2K
  • · Replies 6 ·
Replies
6
Views
1K