To find scale factor you first must find two corresponding sides. then divide one by the other. note that if you divide the smaller side by the larger you will get a number less that one and if you divide the larger side by the smaller side you will get a number greater than one.
The coordinates of your position are <u>(</u><u>6</u><u>,</u><u> </u><u>0</u><u>,</u><u> </u><u>-4</u><u>)</u>.
7(a - 10) = 13 - 2(2a + 3)
7a - 70 = 13 - 4a - 6 = 7 - 4a
7a + 4a = 7 + 70
11a = 77
a = 77/11 = 7
a = 7.
Lets look for square numbers in the factors of 112:-
112 = 2*2*2*2*7
2*2*28" = 16
so sqrt 112 = sqrt16 * sqrt7 = 4 sqrt7 answer
