What is the approximate volume of a cylinder with a height of 2 ft and a radius of 6 ft?

Mathematics

2 answers:

meriva3 years ago

5 0

When finding volume of a cylinder use the formula V=pi r^2h

h=height = 2feet

r=radius = 6feet

V= pi(6)^2(2)

V=226.19

Ulleksa [173]3 years ago

4 0

In order to do this find the area of either the base or the top it doesn't matter they're the same (thats just the area of one of the circles) then multiply that by the height so the answer is 226.08

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Chloe is painting on a stretched canvas that has an area of 108 square inches. The length of the canvas is 12 inches. The width

Stolb23 [73]

Answer: Width of canvas = 9 inches

Area left for painting after painting the border = 70 square inches.

Explanation :

Since we have given that

Area of painting = 108 square inches

Length of canvas = 12 inches

As we know that

$\text{Area of rectangle} = length\times breadth$

$108=12\times breadth\\\\\frac{108}{12}=breadth\\\\9=breadth$

So, breadth of canvas = 9 inches .

Now, Chloe paints a 1 inch wide blue border on the canvas.

$\text{So, remaining length left for painting after painting the border} = 9-1-1=9-2=7\text{ inches}$

$\text{ Remaining breadth left for painting after painting the border }= 12-1-1=12-2= 10\text{ inches}$

$\text{So , area of remaining portion }= length\times breadth \\\\ \text{ area of remaining portion }=7\times 10\\\\\text{ area of remaining portion }=70 \text{ square inches}$