Good question look at the picture do you see 18 and 9 at the bottom well remove the 2 out of the picture make it a 2d shape now it is just 18 as length and 9 as height so to find Surface area you mulitiply the height by the length or the length by the height so it is
18x9:162
The answer is 162
<h2>If this helps please give me a Brainliest!</h2>
