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7th grade math for a bunch of rep
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7th grade math for a bunch of repPosted:
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Evan is painting a stool that has a cylindrical seat and four rectangular prism legs. The seat has a diameter of 14 inches and a height of 4 inches. Each leg is 4 inches by 4 inches by 18 inches. How much area will Evan have to paint? Use 3.14 . Show your work.
Marna wants to store 150 cubic inches of homemade pasta sauce in a food storage container. Should she choose the cylinder with a radius of 3 inches and a height of 6 inches, or the cube with a side length of 5 inches? Explain.
Celina is buying fabric scraps to make koozies for her glasses. Each glass is cylindrical with a diameter of 4 inches and a height of 6 inches. The koozies will cover only the sides of the glasses. What is the amount of fabric she will use? What does this amount represent? Use 3.14 . Show your work.
Marna wants to store 150 cubic inches of homemade pasta sauce in a food storage container. Should she choose the cylinder with a radius of 3 inches and a height of 6 inches, or the cube with a side length of 5 inches? Explain.
Celina is buying fabric scraps to make koozies for her glasses. Each glass is cylindrical with a diameter of 4 inches and a height of 6 inches. The koozies will cover only the sides of the glasses. What is the amount of fabric she will use? What does this amount represent? Use 3.14 . Show your work.
#2. Posted:
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I would do this but i'm on summer break. So, in that case, i'm good.
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Here, I'll give you the answer to #1. You might want to check it though. r=radius, h= height.
1)
r=d/2 r=7
SA Cylinder= 2 (pi r(squared)) +(2 pi r)h
SA= 2(3.14*49) + (2*3.14*7)4
SA= 307.2 + 175.84
SA= 483.04
SA Rectangular Prism= 2a+ 2b+ 2c
SA= 2(4) + 2(4) + 2(18)
SA= 52
Total Surface Area= 535.04 (I don't know the exact unit, since I use the metric system)
Last edited by Establish ; edited 1 time in total
1)
r=d/2 r=7
SA Cylinder= 2 (pi r(squared)) +(2 pi r)h
SA= 2(3.14*49) + (2*3.14*7)4
SA= 307.2 + 175.84
SA= 483.04
SA Rectangular Prism= 2a+ 2b+ 2c
SA= 2(4) + 2(4) + 2(18)
SA= 52
Total Surface Area= 535.04 (I don't know the exact unit, since I use the metric system)
Last edited by Establish ; edited 1 time in total
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i repped you please more +10 each
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2.
Volume of cylinder = pi*r*2*h or pi*16*6 or about 301.44 in
Volume of cube = s or 5 or about 125 in
So since the cube cannot hold it she should use the cylinder!
3.
the surface area of the side of a glass is
A = D H = 4 8 = 32 in = 100.53 in
Volume of cylinder = pi*r*2*h or pi*16*6 or about 301.44 in
Volume of cube = s or 5 or about 125 in
So since the cube cannot hold it she should use the cylinder!
3.
the surface area of the side of a glass is
A = D H = 4 8 = 32 in = 100.53 in
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#7. Posted:
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editable wrote 2.
Volume of cylinder = pi*r*2*h or pi*16*6 or about 301.44 in
Volume of cube = s or 5 or about 125 in
So since the cube cannot hold it she should use the cylinder!
3.
the surface area of the side of a glass is
A = D H = 4 8 = 32 in = 100.53 in
omg yes i love you bro thanks
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#8. Posted:
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Do your own math homework!
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