Answer:

Step-by-step explanation:
Given


Required
Determine AC
Since A, B and C are collinear, then:

So, we have:

If it is area you're looking for, the answer is 7.92 cm^2, or ~7 11/12 cm^2.
Try B, hope that helps :)
Given:
Area of a circle, A=50.265 sq. units.
Radius of circle, r = 4 units.
To find:
The value of π to the nearest thousandth.
Solution:
Formula for area of a circle is



Now, using
expression, we can find the value of π.




Approximate the value to the nearest thousandth (three digits after decimal).

Therefore, the approximated value of π is 3.142.