Search results
Results from the WOW.Com Content Network
Terms. Help. Surface area to volume ratio of a sphere equals to 3/r, where r is the sphere's radius. Surface area of a sphere with radius r equals to 4pir^2. The volume of this sphere is 4/3pir^3. Ratio of the surface area to volume, therefore, equals to (4pir^2)/ (4/3pir^3)=4 (3/4) (pi/pi) (r^2/r^3)=3/r.
A = int dA An area element on a sphere has constant radius r, and two angles. One is longitude phi, which varies from 0 to 2pi. The other one is the angle with the vertical. To avoid counting twice, that angle only varies between 0 and pi. So the area element is dA = r d theta r sin theta d phi = r^2 sin theta d theta d phi Integrated over the whole sphere gives A = int_0^pi sin theta d theta ...
Explanation: to get r, square root #r^2#. divide the surface area by 4pi and square root it. let r be the radius the surface area of a sphere is 4 x pi x r^2 thus, to find the radius, firstly, divide the surface area by 4 and pi, and you'll get r^2 to get r, square root r^2.
The surface area of Mercury is 19477"miles"^2 SA = 4 pi r^2 r = 1550 SA = 4 pi 1550^2 SA = 12.566 xx 1550^2 SA = 19477.88"mi"^2
The surface area of a sphere of radius #r# is #4 pi r^2#. Imagine dividing a sphere into a large number of slender pyramids with base at the surface and top at the centre of the sphere. The base of each pyramid will not be quite flat, but the more pyramids you divide the sphere into, the flatter the base of each will be.
With the formula we can calculate the Surface Area. S = 4πr2. We know the radius (r) to be 8f t. S = 4 × π× 82. S = 4 × π× 64. S = 256π. The surface area of the sphere is 256pi square feet. With the formula we can calculate the Surface Area. S=4pir^2 We know the radius (r) to be 8ft.
The surface area of a sphere of radius #r# is #4pi r^2# Imagine dissecting a sphere into a large number of slender pyramids, with apices at the centre and (slightly rounded) bases tesselating the surface. As you use more pyramids, the bases get flatter. The volume of each pyramid is #1/3 xx "base" xx "height"# So the total volume of all the ...
SA = 14400π or SA = 45238.9342. The easiest way to remember these formulas is to do a cheat sheet. Sphere Calculator. Answer link. Surface Area formula is as follows: SA = 4\pir^2 Plugging in 60m for r, we get: SA = 4\pi * 602 SA = 4\pi * 3600 SA = 14400\pi or SA = 45238.9342 Sphere Calculator.
Find the surface area. Answer: 38 million square kilometers The moon's surface area is about 14.6 million square miles (38 million square kilometers), which is less than the total surface area of the continent of Asia (17.2 million sq mi or 44.5 million sq km). The moon's mass is 7.35 x 1022 kg, about 1.2 percent of Earth's mass.
So the surface area to volume ratio is. The surface area to volume ratio is "1/3r":1, where r is the radius of the sphere. The formula for the volume of a sphere is V = 4/3πr^3, where r is the radius of the sphere. The formula for the area of a sphere is. A = 4πr^2 So the surface area to volume ratio is "SA"/"V" = ( (cancel (4π)r^2)/3 ...