SOLUTION: Perimeter and area of similar figures Area ratio = 4:169 or _______ Similarity ratio: ________ Perimeter ratio: _________ Thank you for your help! I am struggling to h

Algebra ->  Polygons -> SOLUTION: Perimeter and area of similar figures Area ratio = 4:169 or _______ Similarity ratio: ________ Perimeter ratio: _________ Thank you for your help! I am struggling to h      Log On


   

Question 1097223: Perimeter and area of similar figures
Area ratio = 4:169 or _______
Similarity ratio: ________
Perimeter ratio: _________
Thank you for your help! I am struggling to help my child with her homework.
Answer by Boreal(15235) About Me  (Show Source):
You can put this solution on YOUR website!
Area ratio is a^2:b^2
Similarity and perimeter ratios are both a:b
4:169=a^2:b^2
a^2=4, a=2
b^2=169, b=13
Therefore area ratio is 2^2:13^2
Similarity and perimeter ratios are 2:13
Area is a function of the square of something, either the side (square) or radius (circle); similarity and perimeter are linear (to the first power).