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igor_vitrenko [27]
3 years ago
8

You need to wrap a present that is in the shape of a rectangular prism the present has a length of 5 inches a width of 4.5 inche

s and a height and a height of 3.5 inches find the total surface area of the present
A. 111.5 in2

B. 55.75 in2

C. 95.75 in2

D. 135 in2
Mathematics
1 answer:
Vadim26 [7]3 years ago
5 0
The equation for surface area is 2(lw+lh+wh) or length times width plus length times height plus width times height times 2.

so in this problem legth=5 and width=4.5 so 5×4.5=22.5

length=5 height=3.5 so 5×3.5=17.5

width=4.5 height=3.5 so 4.5×3.5=15.75

add these together and you get 55.75.

now we multiply that by 2 so 55.75×2=111.5

so the surface area of the gift is (drumroll please) 111.5
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