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Jade1214
17.10.2019 •
Mathematics
What happens to the surface area of a rectangular prisim when each of the dimensions is doubled?
a) it doubles
b) it quadruples
c) it is six times greater
d) it is halfed
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Ответ:
The formula for the volume of a rectangular prism is
V=l*w*h where l=length w=width and h=height
So lets double each of the dimensions and see what it does to the volume
V=2l*2w*2h
V=8*l*w*h
So when you double each of the dimensions, the volume becomes 8 times greater, which isn't an option. Did you correctly write the question?
For example if the dimensions for l,w & h are 2
V=2*2*2=8
but if they are doubled
V=4*4*4=64
64/8=8
So it's 8 times greater...
Ответ:
4/5
Step-by-step explanation:
The sine of the angle theta is the ratio opposite side / hypotenuse, which
here is
sin theta = 4 / 5