Question

the diameter of Z is 5in. what is its area in terms of pie

Answer 1

pi*2.5^2

Answer 2

Area of a circle (if that's what you have to find) = \(\pi * r^2\)
We also know that, \(d = 2r ~~\therefore r = \frac{d}{2}\)
Now, because we know 'd', we substitute this back into the area equation, like so:\[Area ~~= ~~\pi * (\frac{d}{2})^2\]
d = 5 inches.
Can you find the area now? :)