SOLUTION: 1.) What happens to the surface of a sphere if the diameter is tripled? 2.) Draw a rectangle ABCD and then contruct a line such that the image of the rectangle under reflection

Algebra ->  Formulas -> SOLUTION: 1.) What happens to the surface of a sphere if the diameter is tripled? 2.) Draw a rectangle ABCD and then contruct a line such that the image of the rectangle under reflection       Log On


   

Question 35268: 1.) What happens to the surface of a sphere if the diameter is tripled?
2.) Draw a rectangle ABCD and then contruct a line such that the image of the rectangle under reflection in the line is the original rectangle. Is there more than one line with this property?
Answer by Nate(3500) About Me  (Show Source):
You can put this solution on YOUR website!
1.) What happens to the surface of a sphere if the diameter is tripled?
The surface area will increase.
Lets look at an example:
A+=+%28pi%29r%5E2+=+%28pi%291%5E2+=+3.141592654 diameter = 2
A+=+%28pi%29r%5E2+=+%28pi%293%5E2+=+28.27433388 diamter = 6
2.) Draw a rectangle ABCD and then contruct a line such that the image of the rectangle under reflection in the line is the original rectangle. Is there more than one line with this property?
Yes, you can make vertical lines to the right and left. Also, you can make horizontal lines above and below the figure.