Question

Find the circumference of the circle to the nearest tenth. Use 3.14 for π. It is Zeny’s birthday. Teddy wants to buy a round cake for his presents. The radius of the cake is 11cm. What is the circumference of the cake?

Answer 1

Answer: 69.1 cm

Work Shown:

C = 2*pi*r

C = 2*3.14*11

C = 69.08

C = 69.1

This is the approximate distance around the circle, aka the perimeter.

Answer 2

Circumference of cake (69.08cm)Rounding nearest to tenth is 69.1cm

Explanation:

Given:

• Radius of the cake :- 11cm

To find:

• Circumference of the cake

Solution:

To find the circumference of the circle we are require radius and which is already mentioned in the Ques.

Formula

• Circumference of circle =2πr

Circumference of cake = 2*3.14*11

Circumference of cake= 22*3.14

Circumference of cake = 69.08cm

Hence, the circumference of cake is 69.08cm.

Circumference of cake (69.08cm)Rounding nearest to tenth is 69.1cm