3 years ago

What is the area of a cirlcle that's 4cm

1 answer:

Elena-2011 [213]3 years ago

7 0

If the radius of the circle is 4 than the area would be 50.27.

If you are saying that 4 is the diameter, than divide that by 2 to get the radius which is 2. The area for this would be 12.57.

I don’t know which one you mean but hope this helps :))

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a cylindrical water tank has a radius of 14.5 feet and the is filled with approximately 4950 cubic feet of water which of the fo

d1i1m1o1n [39]

Volume of Cylinder = πr²h
Radius r = 14.5 feet
Volume, V = 4950 cubic feet

4950 = π*14.5²*h

π*14.5²*h = 4950

h = 4950 / (π*14.5²) Use your calculator with π function

h = 7.494

Therefore height ≈ 7.50 feet to the nearest tenth of a foot.

7 0

3 years ago

What the answer to this problem

g100num [7]

The equation:

$(x-10)+40+(x-20)+3x=360\\\\(x+x+3x)+(-10+40-20)=360\\\\5x+10=360\ \ \ \ |-10\\\\5x=350\ \ \ \ |:5\\\\x=70$