What is the radius of a circle that has an approximate circumference of 81.64 meters? round your answer to the nearest whole number. r = m

Given that circumfernce of the circle = 81.64 meters

Now question says to find the radius of the given circle.

We can use the formula of the circumference of the circle. Which is given by:

Circumference = 2 \pi r

where "r" represents radius of the circle and , pi = 3.14

Plug the given values

81.64 = 2* 3.14* r

81.64 = 6.28 r

13 = r

Hence radius of the given circle is 13 meters.

b) 1/3 * 1/5

step-by-step explanation:

each smallest part is 1/15 since the written one is 1/5 and it's divided by 3 equal parts. (1/5 )/3 = 1/15 = 1/3 * 1/5