Today in class we worked on scale factors and similar shapes. We made similar rectangles and triangles for problems A and B for problem 3.3. We had to make new rectangles with the information that they gave us. One of the problems was to make rectangle A to a new rectangle with the scale factor of 2.5. To do this, you would have to first multiplied to base by 2.5, and then the height by 2.5. The new rectangle should be 2.5 times larger and still be similar to the original rectangle.
Another problem on 3.3 was to to make a new rectangle have and area 9 times larger than triangle B and still be similar. To figure this out, you would have to multiply the dimensions by 3. You would do this because to find out the area of a new shape, you would have to multiply the scale factor by itself, then multiply the area from the original shape by that.
This is what we worked on in class!!!
Wednesday, January 6, 2010
Subscribe to:
Post Comments (Atom)
No comments:
Post a Comment