Question

what is the surface area of this cone? round your answer to the nearest hundredth. 15 yd 7 yd square yards

Explanation:

Step1: Recall surface - area formula

The surface - area formula of a cone is $S = \pi r(r + l)$, where $r$ is the radius and $l$ is the slant height.

Step2: Identify values

Here, $r = 7$ yd and $l=15$ yd.

Step3: Substitute values into formula

$S=\pi\times7\times(7 + 15)$
$S = 7\pi\times22$
$S=154\pi$

Step4: Calculate and round

$S\approx154\times3.14159 = 483.80486\approx483.80$ square yards

Answer:

$483.80$