Question

Find the total surface area. A. 2,016 km² B. 6,156 km² C. 1,368 km² D. 165 km²

Answer 1

Answer:

$\boxed{A. 2,016 km^2}$

Step-by-step explanation:

Hey there!

TSA is calculated using,

TSA = 2wl + 2lh + 2hw

Plug in the given info.

w = 18

l = 18

h = 19

TSA = 2(18)(18) + 2(18)(19) + 2(19)(18)

TSA = 648 + 684 + 684

TSA = 2,016km²

Hope this helps :)