True or False? Because the length of a rectangle is an irrational number, the perimeter and area would always be irrational. Please explain and use examples, Thank you.

Question

ikram002p · Answer

for a circle or rectangle or triangle ??

anonymous · Answer

Rectangle, sorry.

anonymous · Answer

P = 2L + 2W

A = W x H

anonymous · Answer

Can you please give examples too?

ikram002p · Answer

I will answer for rectangle 
first case for area :
you want to prove that 
if $$n \neq \frac{ a }{ b } \rightarrow n^2\neq \frac{ A }{B }$$
using the contrapositive 
assume $$n^2=\frac{ A }{ B } \rightarrow n=\frac{ a }{ b }$$
when $$n^2=\frac{ A }{ b } $$
then there exist a ,b such that
$$n^2=\frac{ a^2 }{ b^2  }$$
thats mean 
$$n=\frac{ a }{ b }$$
which means that is a true statment

anonymous · Answer

Oh, can you give an example?

ikram002p · Answer

noting that n is length of a rectangle

anonymous · Answer

Nevermind that.

anonymous · Answer

Can you help me solve a different question?

ikram002p · Answer

ok but did you  got  the ansewr or there is any thing you want me to explain ?

anonymous · Answer

No, that's okay.

anonymous · Answer

Can you help me solve this question?

ikram002p · Answer

just type you question and I will see

ikram002p · Answer

Anna is the coorect answer I will explain it to you

anonymous · Answer

Oh, okay.

anonymous · Answer

So you have to put the x into the exponent?

ikram002p · Answer

I put a circle on the wrong step

anonymous · Answer

Are those the ONLY wrong steps?

anonymous · Answer

Thank you so much.