Assume Figure A and Figure B, at right, are similar.  

1. If the ratio of similarity is $\frac { 3 } { 4 }$, then what is the ratio of the perimeters of Figures A and B?

   Answer (a):

   $\frac{3}{4}$

2. If the perimeter of Figure A is $p$ and the linear scale factor is $r$, what is the perimeter of Figure B?

   Hint (b):

   If the perimeter of Figure A was $5$ and the scale factor was $3$, how would you find the perimeter of Figure B?

3. If the area of Figure A is $a$ and the linear scale factor is $r$, what is the area of Figure B?

   Hint (c):

   If the linear scale factor is $r$, what is the area ratio?