the circumference of a circle is 13. what is the approximate length of the diameter?

Question

1) 2.3
2) 3.2
3) 4.1
4) 5.5
5) 6.4

Answer 1

Answer: #3 (4.1)

(Diameter = Circumference / Pi)

D=13 / 3.14159 = 4.138 (closest is 4.1)

Answer 2

About 4

Answer 3

? (sometimes written pi) is a mathematical consistent whose cost is the ratio of any circle's circumference to its diameter in Euclidean area; that's an identical cost because of the fact the ratio of a circle's section to the sq. of its radius. that's approximately equivalent to 3.141e4da3b7fbbce2345d7772b674a318d593 interior the huge-unfold decimal notation (see the table for its representation in another bases). The consistent is likewise common as Archimedes consistent, even however this call is very uncommon in cutting-area, western, English-talking contexts. Many formulae from arithmetic, technological know-how, and engineering contain ?, it particularly is between the main necessary mathematical and actual constants.[5] ? is an irrational quantity, this ability that its cost can't be expressed precisely as a fragment m/n, the place m and n are integers. subsequently, its decimal representation in no way ends or repeats. it is likewise a transcendental quantity, which ability, between different issues, that no finite series of algebraic operations on integers (powers, roots, sums, etc.) would be equivalent to its cost; proving this replaced right into a overdue success in mathematical historical past and an significant effect of nineteenth century German arithmetic. via the historical past of arithmetic, there has been plenty attempt to establish ? greater properly and to understand its nature; fascination with the quantity has even carried over into non-mathematical lifestyle. The Greek letter ?, frequently spelled out pi in text cloth, replaced into observed for the quantity from the Greek be conscious for perimeter "??????????", first via William Jones in 1707, and popularized via Leonhard Euler in 1737

Answer 4

Since the circumference of a circle is equal to 2 times pi times the radius, 13 = 2 x 3.14 x r. Therefore, 6.5 = 3.14 x r and r = 6.5 divided by 3.14, which is approximtely 2.07
If the radius is 2.07, then the diameter is twice that, or approximately 4.14. Thus, the answer is #3.

Answer 5

#3. This site will tell you that the circumfrence is the diameter divided by pi. so write an equation, isolate "D". Then Solve, and you should get 4.138...

Answer 6

3)

Answer 7

Circumference divided by pi (3.1416) = diameter.

4.13

Answer 8

13 divided by 3.141759... (Pi, which really goes on forever) = approximately 4.1--#3

Answer 9

13 / 3.142 (pi) = 4.13 (3) is correct.

Answer 10

3) 4.1