http://app.letsrecap.com/public/r/212b851f4be4d11d6e71b194c9d20dc9

We were asked to think about the different types of comparison statements we’ve been writing and our work with rates and unit rates. In this video I’ve addressed 2 questions: 1) HOW have you found these ideas helpful. 2) Make up an example comparing two items using unit rates.

Figures are mathematically similar when all corresponding angles are congruent and there is a scale factor. This means between two figures the angles have the same measurement. For figures also to be mathematically similar they needs to be a scale factor. A scale factor is when there is a number that you multiply or divide that will give you the measurement of the side length. Figures are only similar when there is a scale factor and all corresponding angles are congruent.

True or False

Any two rectangles are similar.

• This is false because all rectangles angles are congruent but not all rectangles have a scale factor. Rectangles are only similar when there is a scale factor and all corresponding angles are congruent.  This proves that any two rectangles are not similar.

Any two equilateral triangles are similar.

• This is true because all of the sides of an equilateral triangle are equal. Also all angles are congruent in an equilateral triangle. One equilateral triangle would be equivalent to the other one.

This is a picture of bad note taking. It is bad note taking because my work is sloppy and unclear. It also in not detailed enough and hard to understand.

 This is a picture of good note taking. It is good note taking because it clear and easy to understand. It is also good note taking because you can clearly see what is going on in class that day.

On the first page of this assignment is was asking you to find the scale factors between each shape. I found shape y and w had a scale factor because it had a scale factor of 2. 4 x 2=8 3 x 2=6. I also found that shape t and z had a scale factor of 2 as well. 2 x 2=4 3 x 2=6.

On the second page of this assignment we were asked to find a figure similar and not similar for each shape. The original shape was 4 by 3.  I then drew a shape that was 12 by 9. It was similar because it had a scale factor of 3 and all angels are congruent. The shape I drew that was not similar was 1 by 2. It was not similar because it had no scale factor. The second original shape was a triangle which was 4 by 6. I drew a shape that was 4 by 3. It was similar because it had a scale factor of 1/3. The shape I drew that was not similar was 6 by 9. It was not similar because it had no scale facor.