Math
posted by Tarah .
A drawing 20 centimeters by 15 centimeters is put into a copy machine at a setting to be shrunk by 75% of its original size.
a. What will the new dimensions be?
b. Are the ratios of corresponding sides of the drawing and its copy equal?
c. Are the drawing and its copy similar?

.75 * 20 = ?
.75 * 15 = ?
I'll let you answer the last two questions. It might help to draw the two rectangles representing the drawings.