Question

JUST LOOK AT Q4 I need this question ASAP?!?!?!?!?????!??!??

Answer 1

Answer:

A=78.23in²

Step-by-step explanation:

First we need to solve for the radius. The volume of a cylinder can be found using the formula:

$V=\pi r^{2} h$

Now we have the variables:

V = 1177.5 in³

h = 15

r = ?

$1177.5=\pi r^{2}15$

$\dfrac{1177.5}{15}=\dfrac{\pi r^{2} }{15}$

$78.5=\pi r^{2}$

$\dfrac{78.5}{\pi }=\dfrac{\pi r^{2} }{\pi }$

$r^{2}$≅24.99

$\sqrt{r^{2} }$≅$\sqrt{24.99}$

r≅4.99in

Now since we're looking for the area of the base, we can use the formula for the area of a circle which is:

$A=\pi r^{2}$

$A=\pi (4.99)^{2}$

A=78.23in²