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Sagot :
Answer:
400 mm
Step-by-step explanation:
8 * 10 = 80
80 * 5 = 400
400 mm
Answer:
340 mm
Step-by-step explanation:
The formula of the surface area of a rectangular prism is SA=2(wl+hl+hw) where w = width, h= height, l = length. Plugging in all the values from the figure -- 2·(5·10+8·10+8·5)= 340 mm
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