Question

At a school carnival, the diameter of the mat of a trampoline is 10 feet and the diameter of its metal frame is 12 feet. What is the length, in feet, of the metal frame that surrounds the trampoline? Use 3.14 for π and round your answer to the nearest tenth.

15.7 feet
18.9 feet
31.4 feet
37.7 feet

Answer 1

@freckles @AlexandervonHumboldt2 @jigglypuff314

Answer 2

circymfence = pi*2*r

Answer 3

where r is radius diameter=2r

Answer 4

use the diameter = 12 feet :)

Answer 5

ok umm..... wait a sec

Answer 6

10 x 12 x 3.14?

Answer 7

376.8

Answer 8

not quite :)

Answer 9

if the diameter is 12
what would the radius be?

Answer 10

oh

Answer 11

im not sure :(

Answer 12

radius would be half of the diameter
what is half of 12? :)

Answer 13

6

Answer 14

good :)
now plug it into the formula

circumference = (pi) (2) (radius) = ?

Answer 15

37.68

Answer 16

D?

Answer 17

yes :)

Answer 18

thx!!! can u help with more?

Answer 19

oh nvermind lol i finished!!!!!! YAY thx:)

Answer 20

bye ur d best ;)