Question

A cake has circumference of 25 1/7
inches. What is the area of the cake? Use 22/7
to approximate π. Round to the nearest hundredth. Enter your answer in the box.
________in.2

Answer 1

formula of circumference ?

Answer 2

What is the area of the cake?

Answer 3

Do you remember what the formula of circumference is-?

Answer 4

yes

Answer 5

c=\[\pi\]d

Answer 6

c= 25 1/7
\[\pi\]=22/7
d= ?

Answer 7

To find the area of the cake, we need to first find its radius. To do that, we can use the formula for the circumference of a circle: C = 2πr, where C is the circumference and r is the radius.

Plugging in the given values, we get:
25 1/7 = 2 x 22/7 x r

Simplifying, we get:
r = (25 1/7) / (2 x 22/7)
r = 3 8/21

Now that we have the radius, we can use the formula for the area of a circle: A = πr^2

Plugging in the given values, we get:
A = 22/7 x (3 8/21)^2
A ≈ 29.14

Rounding to the nearest hundredth, we get:
A ≈ 29.14 in.2

(Tried to explain as best I could)

Answer 8

Okay, I get it. Thank you!

Answer 9

No problem