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joja [24]
4 years ago
15

Find the surface area of the prism

Mathematics
2 answers:
scoray [572]4 years ago
6 0
Lets find the area of the 2 rectangles on the left and right side.
8*7 (2) = 112 (Both rectangles in total)
Now lets find the rectangles on the front and back.
13*7 (2) = 182
Now, the top and bottom ones.
13*8 (2) = 208
Add them all together.
112+182+208 = 502
The surface area is 502.
Zepler [3.9K]4 years ago
5 0
Wee you find the area off all the sides and add em all up. First, for the big side to find the area is lw so 13 * 7= 91mm and there are 4 of those sides so 91*4 = 364mm. Next, for the small sides, lw is 8*7=56 and there are 2 so 50*2 = 112mm. And finally you add them together 112+364= 476mm
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