Question #9, pg. 158)
When I first did the question, this was my answer:
When I checked in the answers section of the textbook the answer was supposed to be 15.0cm. So I went on a few websites and tried the problem again.
What I did was read the question over a few more times and I realized that the shape was a square so I divided the total from each square into 4 (sides) and then I lettered the corners of the lines so that I could do the division from both squares and I got the correct answer.
Question #14 pg. 159:
When I first tried this problem I didn’t even know where to begin so I don’t have anything to show for that since I didn’t write anything down. I got some help from my brother and the Internet and concluded the answer for A to be a scale factor of 20:
What I did was, convert the 12cm on her diagram and all of the other measurements form her model to metres as I was solving them so that it would be easier to compare to the actual one because they are in the same measurements. I drew my two tents and labeled the angles, I did the division method and substituted the missing side length or X after I had solved the equation.
B)
This was very easy because all that I had to do was convert to cm.
C) I already did this in A.
Question #12 Pg.158:
The first time I tried this problem my answer was:
When I checked, the answer was supposed to be 39.3cm and my answer was 66.75cm. So I tried again:
The mistake that I made was that in the first line I accidentally but the length as 10cm instead of 12cm.
In conclusion I think that my weakest spit in this into is word problems and when I have to draw the shape and compare because when it is simply laid out and already labeled and drawn for me it is of course a lot easier. So these are the types of questions that I worse on for my review.
Some helpful websites and videos: