The figures are similar. Give the ratio of the perimeters and the ratio of the areas of
the first figure to the second. The figures are not drawn to scale. Rest in comments.

Question

The figures are similar. Give the ratio of the perimeters and the ratio of the areas of
the first figure to the second. The figures are not drawn to scale.  Rest in comments.

hartnn · Answer

ratio of perimeter will be same as ratio of sides...

hlambach · Answer

A. 8/3 and 49/4
B. 8/3 and 9/4
C. 7/2 and 49/4
D. 7/2 and 9/4

hlambach · Answer

I have NO idea what to do lol

hartnn · Answer

whats the ratio of sides ? 
35/10 =.... ?
can you simplify this ?

hlambach · Answer

7/2

hartnn · Answer

yes, thats ratio of perimeter....
ratio of are will be just square of it,
(7/2)^2 =.... ?

hlambach · Answer

49/4 but why would the area be squared?

hartnn · Answer

because area is proportional to square of sides, 
$Area \quad  \alpha \quad side^2$
hence their ratio will also be squared....

hlambach · Answer

does this apply to all questions alike this?

hlambach · Answer

ah okay thts a yes... thanks!

hartnn · Answer

yes, to all questions! :)
welcome ^_^