Find the Surface Area
Use 3.14 for π. SA = 4πr². Round to 2 decimal places.
Sphere Surface Area!
Choose your challenge:
Surface Area of Sphere Game
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This Surface Area of Sphere Game is a great way to put your skills to the test in a fun environment. By practicing, you’ll start to work out the answers efficiently.
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Surface Area of Sphere Game
The surface area ($SA$) of a sphere is the total area of its outer shell. The formula is:
SA = 4πr2
Scroll down the page for a more detailed explanation.
In this game, you may select “Find Surface Area”, “Find Radius”, or “Mixed Questions”. If you give a wrong answer, the game will provide the correct answer.
Score: 0 / 0
How to Play the Surface Area of Sphere Game
In the game, you need to find the surface area of a sphere or find the radius when given the surface area.
Here’s how to play:
- Choose your challenge: Select “Find Surface Area”, “Find Radius”, or “Mixed Questions”.
- Find Surface Area: Calculate surface area given the radius.
- Find Radius: Calculate radius given the surface area.
- Enter Your Answer: Enter in the answer.
- Check Your Work: Click the “Check” button (or press the Enter key). The game will tell you if you’re correct. If you are wrong, you will be shown the correct answer.
- Get a New Problem: Click the “Next” button for a new problem.
Your score is tracked at the top, showing how many you’ve gotten right out of the total you’ve tried. - Back to Menu Click “Menu” to restart the game.
The Surface Area Formula
The surface area (SA) of a sphere is the total area of its outer shell.
The formula is:
SA = 4πr2
Where:
SA is the Total Surface Area.
π (pi) is the constant approximately equal to 3.14.
r is the radius of the sphere (the distance from the center to the surface).
Radius of a Sphere
To solve for the radius (r), we need to isolate it on one side of the equation.
\(r = \sqrt{\frac{SA}{4\pi}}\)
The video gives a clear, step-by-step approach to find the surface area of a sphere.
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