Ms. Brown served her apple pie on a 21 inches radius dish. She wanted to tie a ribbon around the dish to make it a little more festive. How long does the ribbon need to be in order to fit the dish? Use 22/7 as π. (only enter the final answer)

Question

Mathematics

Alayna Lin

12 October, 20:37

Ms. Brown served her apple pie on a 21 inches radius dish. She wanted to tie a ribbon around the dish to make it a little more festive. How long does the ribbon need to be in order to fit the dish? Use 22/7 as π. (only enter the final answer)

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Answers (2)

Know the Answer?

Derick Kramer · Answer 1

Derick Kramer 12 October, 21:16

0

365 radius is the answer

Ezekiel Meyer · Answer 2

132 inch

Step-by-step explanation:

To find the length around the dish we need to find the perimeter

Perimeter of a circle = circumference = πd

Radius = 21 in

Diameter = 21x2 = 42 in

Therefore perimeter

= 22/7 x diameter

= 22/7 x 42

= 22 x 6

= 132 in

So, she will need a ribbon of length is 132 inches to tie around the dish