Surface Area of a Sphere

Read this topic

Explanations 1

Unlike some shapes, the surface area of a sphere is not easy to calculate. All of the "easy" methods for figuring it out require the use of calculus (as in this explanation), so…
By Max Schindler, Victor Wang

Problems 8

Compute the surface area of a sphere of radius RRR.
To compare this with today's technology, suppose that we can build a version 50 meters in diameter, with a 1-meter-wide exhaust port. If we used this level of technology to powe…
The Sun produces about 400,000,000,000,000,000,000,000,000 watts of power. The Earth is about 150 billion meters from the Sun, and the Earth has radius of about 6000 kilometers.…
How many times more powerful is the radiation intensity at a distance equal to a palm's width, versus the radiation intensity at a distance equal to an arm's length?
The Death Star was said to have a diameter of 160 kilometers. If our moon's volume is 3,948 times larger than the Death Star's, what is the approximate surface area of the moon …
What percent, rounded to the nearest percent, of the wiffle ball's surface is plastic?
Find the resultant net change in composite surface area in terms of the percentage of the original sum total surface area of the two bubbles.
On April 101010th, 201920192019, humans got the first ever picture of a black hole (pictured above). This black hole, M878787, has a diameter of 404040 billion kilometers. For s…