H a n d o u t 2 p 3 L e s s o n 5 MATHEMATICS Problems on Conic Sections 13 You

# H a n d o u t 2 p 3 l e s s o n 5 mathematics

This preview shows page 12 - 14 out of 25 pages.

H a n d o u t 2 p . 3 L e s s o n 5 (MATHEMATICS) Problems on Conic Sections 13. You can think of a rectangle as a square that’s been stretched out in one direction, without doing anything in the perpendicular direction. This type of stretching is called a dilation. Using a ruler, measure the dimensions of the square and the rectangle in the figure above. How much was the square stretched horizontally to make the rectangle? Does it make more sense to describe this stretching amount as something you add to the square’s base, or as something you multiply the base by? By the way, the stretching amount is called the “scale factor.” 14. Can you consider a squeeze (instead of a stretch) to be a dilation? What sort of number would the scale factor be for a squeeze? 15. What effect does doubling the base of a triangle have on its area? What about doubling its height? 16. In the graphic below, what is the ratio of the area of the unshaded triangle to the area of the shaded triangle?   #### You've reached the end of your free preview.

Want to read all 25 pages?

• Winter '17
• Mrs. Manternach
• English
• • • 