0
What are the circumference and surface area of a sphere with a volume of 250 cubic cm giving your answers correct to 3 decimal places if necessary?
Wiki User
∙ 13y ago
First we have to find the radius because the circumference = 2*pi*r or pi*d and the surface area = 4*pi*r2
4/3*pi*r3 = 250 cubic cm
Multiply both sides by 3:
4*pi*r3 = 750
Divide both sides by 4*pi and then cube root both sides:
radius = 3.907963209 cm
Circumference = 2*pi*r = 24.55445702 or 24.554 cm
Surface area = 4*pi*r2 = 191.9158293 or 191.916 square cm
Check: 4/3*pi*3.9079632093 = 250 cubic cm
Wiki User
∙ 13y ago
Add your answer:
Earn +20 pts
If the radius is 13 is the circumference 81.64?
The circumference is defined by 2* PI * radius Your calculation is therefore correct, but is depends upon what number of decimal places you need to quote your answer. The proper answer to two decimal places is 81.68.
Circumferance divided by diameter is called?
The circumference of a circle divided by its own diameter will leave you with pi which is about 3.142 correct to three decimal places.
If the diameter is 23.5 What is the circumference?
Circumference: 23.5*pi = 73.827 units to 3 decimal places
What is the circumference of a circle when the radius is 50cm?
circumference = 2pi50 = 314.159 cm to 3 decimal places
What is the circumference of a circle with the radius of 7 if necessary round your answer to two decial places?
Fot 2 decimal places you can easily use the approximation for pi=22/7. So circumference = pi x diameter = 14 x 22/7 = 44
What is the area of a circle if the circumference is 40?
127.324 square units correct to 3 decimal places
If the radius is 13 is the circumference 81.64?
The circumference is defined by 2* PI * radius Your calculation is therefore correct, but is depends upon what number of decimal places you need to quote your answer. The proper answer to two decimal places is 81.68.
The circumference of a circle is 23.5682 feet. What is the correct diameter of the circle?
The diameter of the circle is circumference/pi = 23.5682/pi = 7.501991 approximately. The answer will always be approximate and not "correct" because pi is a transcendental number and does not have a terminating or recurring decimal representation.
What is the circumference of an oreo?
Circumference = 2 x Pi x r = 2 x Pi x 2.25cm = 14.14cm (approx. correct to 2 decimal places)
Circumferance divided by diameter is called?
The circumference of a circle divided by its own diameter will leave you with pi which is about 3.142 correct to three decimal places.
If the diameter is 23.5 What is the circumference?
Circumference: 23.5*pi = 73.827 units to 3 decimal places
What is the circumference of a circle when the radius is 50cm?
circumference = 2pi50 = 314.159 cm to 3 decimal places
If a circle has a radius of 4in how do you get the circumference and area?
Circumference is diameter*π, so the answer is 12.56636 in Area is π*r², so 16π = 50.42544 in² * * * * * Correct formulae, but incorrect answers. Radius = 4 inches implies diameter = 8 inches. So circumference = 8*pi = 25.13 inches. Also, area = pi*r2 = 16*pi = 50.265 sq inches. There is no point in giving the answer to 5 decimal places if you then use 3.15159 for pi instead of 3.14159!
What is the circumference of a circle with the radius of 7 if necessary round your answer to two decial places?
Fot 2 decimal places you can easily use the approximation for pi=22/7. So circumference = pi x diameter = 14 x 22/7 = 44
How do you write 6.5 as a decimal?
The correct correct correct correct answer is 0.65 yo!
What is the percentage of 9 wrong out of 85 questions?
If you have 9 questions wrong out of 85, you have 10.59 percent incorrect answers, rounded to two decimal places, and 89.41 percent correct answers.
What is the circumference what is the circumference of a 26 inch diameter?
If its diameter is 26 inches then its circumference = 26*pi = 81.681 inches to 3 decimal places
