Answer:
You would use the cos function because you are given the adjacent side and you are finding the opposite side.
Step-by-step explanation:
SOH CAH TOA
Sin = O/H
Cos = A/H
Tan = O/A
O is the Opposite side
H is the Hypotenuse
A is the adjacent side
<h2>
Therefore the area of the circle is =

</h2>
Step-by-step explanation:
Given that the circumference of a circle measures
cm
Let the radius of the circle be = r
Then circumference =
cm
According to problem
= 
⇔
⇔
cm
Therefore the area of the circle is = 
=

=

You would need 5 cubes to fill your storage container