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ehaynie
23.07.2019 •
Mathematics
Angelica is painting the bottom and sides of a rectangular planter. she has enough paint to cover 300 square inches. the planter is 13 inches long, 5 inches wide, and 8 inches tall. find the surface area of the planter and tell if angelica has enough paint.
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Ответ:
We have to find the Surface area of the planter
Now it says
length = 13 inches
Width = 5 inches
Height = 8 inches
Now to find the complete surface area of bottom and sides , we can find the surface area of bottom and then we can find the surface area of opposite sides , because the opposite sides will have the same area
So
Surface area = Surface area of bottom + 2( surface area of one side ) +2( surface area of adjacent side)
hence Surface area = (13 * 5 ) + 2(13*8) + 2(5*8) = 65 + 208 +80 = 353 Square inches
Surface area = 353 square inches
while she has only 300 square inches of paint ,
Hence it will not be enough
Ответ:
(I have to use up extra room or else it won’t submit)