Question

A dog’s chew toy is a rubber ring with a circumference of 41 cm.



What is the diameter of the chew toy, rounded to the nearest centimeter?

Use 3.14 to approximate pi.

Answer 1

here we have to apply this formula:
\[D = \frac{C}{{3.14}} = \frac{{41}}{{3.14}} = ...cm\]

Answer 2

So, \[3.14 \div 41 or 41 \div 3.14 ?\]

Answer 3

it is 41 : 3.14=...

Answer 4

so, ratios

Answer 5

yes!

Answer 6

oh yay!

Answer 7

then, simplify?

Answer 8

Wait, no it can't be simplified

Answer 9

you have to divide 41 by 3.14, what do you get?

Answer 10

13.0573248407

Answer 11

now you have to round off that number to the nearest unit

Answer 12

13.1

Answer 13

am i right? :D

Answer 14

the nearest unit I think is 13.0 cm

Answer 15

Oh, sorry. My mistake..

Answer 16

Thanks! :)

Answer 17

:)