Identify Structure Complete the graphic organizer to compare how the scale factor affects the side lengths, perimeter, and area of similar rectangles.

Persevere with Problems Two circles have circumferences of \(\pi\) and \(3\pi\). What is the ratio of the area of the circles? the diameters? the radii?

Justify Conclusions A company wants to reduce the dimensions of its logo from 6 inches by 4 inches to 3 inches by 2 inches to use on business cards. Robert thinks that the new logo is \(\cfrac{1}{4}\) the size of the original logo. Denise thinks that is \(\cfrac{1}{2}\) of the original size. Explain their thinking to a classmate.

Use Math Tools Use the coordinate plane to draw a rectangle. Dilate the rectangle and draw the dilation. Then determine the perimeter and area of each rectangle to model the effect of the dilation.