Question

plse solve this

Answer 1

solve what

Answer 2

http://www.extramarks.com/ask-explore-answer/question/118242/mathematics/if-the-area-of-a-square-of-side-x/10/?pn=cswise&prevsh=

Answer 3

how

Answer 4

15 cm

Answer 5

x =5
3x =?
3*5 = 15 cm

Answer 6

No the formula for area of a square is a^2

Answer 7

If two polygons are similar, the square of the scale factor of the two polygons is equal to the ratio of any two corresponding area measurements of the polygons.

All squares are similar.

So, ((x/(3x))^2 = 5/A where A is the area of the second square and x/(3x) is the scale factor.

Answer 8

I got 45 for the area of the second square. Does anybody think that is correct?

Answer 9

@msingh Do you agree with my work?

Answer 10

let me check

Answer 11

how 45 came

Answer 12

I got 45 as well direct :) nice one.

Answer 13

Thanks, Bat.

Answer 14

@msingh Here is how it came:

If two polygons are similar, the square of the scale factor of the two polygons is equal to the ratio of any two corresponding area measurements of the polygons.

All squares are similar.

So, ((x/(3x))^2 = 5/A where A is the area of the second square and x/(3x) is the scale factor.

x = 45.

Calculation:

http://www.wolframalpha.com/input/?i=%28%28x%2F%283x%29%29%5E2+%3D+5%2FA