Question

PLS HELP WITH THIS ONE if a radius of a cake is 13 and the ribbon of the cake is 36 cm will the ribbon be long enough to go around the edge of the cake?

Answer 1

No, the ribbon would not be long enough to go around the edge of the cake.

Circumference ≈ 81.7 cm

Explanation:

1) Calculate the circumference of the cake

Circumference - the length around a circle

`C=2\pi r` where r is the radius

Plug 13 in as the radius

`C=2\pi (13)\\C=26\pi\\C= 81.7`

Therefore, the circumference of the cake is approximately 81.7 cm.

Because the ribbon is only 36 cm long, it would not be enough to go around the edge of the cake.

I hope this helps!