find the length of the side of a square with an area of 121
484
30.25
11
6.5
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OpenStudy (anonymous):
Do you know the formula for the area of a square?
OpenStudy (anonymous):
no
OpenStudy (anonymous):
l*w, what number multiplied by itself equals 121?
OpenStudy (anonymous):
60.5
OpenStudy (nurali):
\[Area=a^2\]
\[a=\sqrt{A}\]
\[a =\sqrt{121}\]
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OpenStudy (anonymous):
Do you have a calculator?
OpenStudy (anonymous):
11
OpenStudy (anonymous):
Yes, 11*11 equals 121
OpenStudy (anonymous):
thanks
OpenStudy (anonymous):
No, you were right when you said the answer was 11
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OpenStudy (anonymous):
i know my computer is acting crazy
OpenStudy (anonymous):
ok
OpenStudy (anonymous):
do you feel like helping me with another one
OpenStudy (anonymous):
sure
OpenStudy (anonymous):
r u a teacher?
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OpenStudy (anonymous):
which is the closest to the surface area in a square inches that jim is going to refinish
19.5 inches
answers are
1200
1600
2000
2400
OpenStudy (anonymous):
no not a teacher
OpenStudy (anonymous):
So is the surface area of a square, and the length of one side is 19.5 inches?
OpenStudy (anonymous):
yes
OpenStudy (anonymous):
To find the S.A. of a cube, you would find the area of one side, and then multiply by 6.
19.5*19.5=?
?*6=?
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OpenStudy (anonymous):
2281.50 is what i got...ughhh
OpenStudy (anonymous):
Yeah, that's the answer for the surface area of a cube that has the side length of 19.5 inches. Why isn't it an answer choice?
OpenStudy (anonymous):
19.5x2=380.25
OpenStudy (anonymous):
380.25x4=1521
OpenStudy (anonymous):
so would 1600 be the answer
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OpenStudy (anonymous):
It doesn't make sense. Are you sure that we need the surface area of a cube?
OpenStudy (anonymous):
no, because a cube has 6 sides.
OpenStudy (anonymous):
it says old storage chest shaped like a cube
OpenStudy (anonymous):
Let's try rounding 19.5 to 20.
20*20=?
?*6=?
OpenStudy (anonymous):
2400 ?
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OpenStudy (anonymous):
Right
OpenStudy (anonymous):
That's the answer I would go with.
OpenStudy (anonymous):
you up for one more???
OpenStudy (anonymous):
yeah
OpenStudy (anonymous):
Find the volume of a triangular prism with the flowing demenisons. Round to the nearest whole number
Triangle Base 7ft
Triangle height 4ft
prism height 8.5
answers
20 ft3
65 ft3
119 ft3
238 ft3
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OpenStudy (anonymous):
r u there orange master
OpenStudy (nurali):
V = Area of base x height
A = 1/2 (b)(h1)
A = ½(7)(4)
A = ½(35)
A = 14
V = (14)(8.5)
V = 119 ft^3