+73 Here are 2 circles. The smaller circle has radius r, circumference c, and diameter d. (I'm confused about how to explain this problem so I need some help.)
+1005 Well then everything must be increased by k times on the larger one.
Why?
It says "the larger circle is a dilation of the smaller circle by a factor of k", which means the larger circles is k times larger. Which means that all parts of it are k times larger.
If the smaller circle's circumference is 2πr, we have 2πr * k = 2πR.
+1005 Well then everything must be increased by k times on the larger one.
Why?
It says "the larger circle is a dilation of the smaller circle by a factor of k", which means the larger circles is k times larger. Which means that all parts of it are k times larger.
If the smaller circle's circumference is 2πr, we have 2πr * k = 2πR.
