Q:

can anyone help me with these i need them befire tomorrow

Accepted Solution

A:
When you have a scale factor as percentage, is better to convert that percentage into a fraction by divide it by 100%. That way, it will be much easier to scale your figures.

1. The scale factor we need to apply to our rectangle is 60%. Firts, lets convert our scale factor into a fraction: [tex] \frac{60}{100} = \frac{3}{5} [/tex]. Next, we just need to multiply each side of our rectangle by our fraction:
length=[tex]16( \frac{3}{5})=9.6 [/tex]
width=[tex]8( \frac{3}{5} )=4.8[/tex]
So, our new rectangle will have a length of 9.6 units and a width of 4.8 units.

2. This time the scale factor is 120%. Just as before, lets convert it into a fraction: [tex] \frac{120}{100} = \frac{6}{5} [/tex], and just as before lets multiply each side of our triangle by our fraction:
base=[tex]10( \frac{6}{5} )=12[/tex]
side=[tex]8( \frac{6}{5} )=9.6[/tex]
So, our new isosceles triangle will have a base of 12 units and tow sides of length 9.6 units each.

3. This time the scale factor is 150%. Just as before, lets convert it into a fraction: [tex] \frac{150}{100} = \frac{3}{2} [/tex], and just as before lets multiply each side of our polygon by our fraction:
[tex]12( \frac{3}{2} )=18[/tex]
[tex]15( \frac{3}{2} )=22.5[/tex]
[tex]13( \frac{3}{2} )=19.5[/tex]
So, our new polygon will have a side of 12 length units, tow sides of 15 length units, and two side of 15 length units.

4. This time our factor is 75%. Just as before, lets convert it into a fraction: [tex] \frac{75}{100} = \frac{3}{4} [/tex], and just as before lets multiply each side of our parallelogram by our fraction:
side=[tex]25( \frac{3}{4} )=18.75[/tex]
So, our new parallelogram will have tow sides of length 18.75 units.