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umka2103 [35]
3 years ago
15

Use the net to find the surface area of the rectangular prism.

Mathematics
1 answer:
Komok [63]3 years ago
3 0

Answer:

220

Step-by-step explanation:

The surface area is  given by

SA = 2 ( lw+wh+lh)  where  l is length h is height and w is width

SA = 2(3*4 + 3*14+ 4*14)

     = 2(12+42+56)

    = 2(110)

    = 220

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padilas [110]

Answer:

310.86ft²

Step-by-step explanation:

30/2 = 15

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Hope it helps

4 0
3 years ago
Read 2 more answers
Find the area of the polygon
antoniya [11.8K]

Looks like the larger triangle is equilateral (well, it must be, otherwise finding the area is impossible). That means the inradius is 6 and the outradius is 12, which is to say the altitudes (equal to the height, in this case) of this triangle have length 6 + 12 = 18.

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\dfrac12(12\sqrt3)(18)=\boxed{108\sqrt3}

3 0
3 years ago
ou select a marble without looking and then put it back. If you do this 21 times, what is the best prediction possible for the n
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3 years ago
Determine if the following system of equations has no solutions, infinitely many solutions or exactly one solution:
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5 0
3 years ago
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Y=x+2 and x+y=8 in substitution method​
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Answer:

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3 years ago
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