Question

Please and thank you

Answer 1

Answer:

$\huge\boxed{\sf x = 4}$

Step-by-step explanation:

If the given polygon is a regular polygon, its sides are equal.

This means:

$x^2+4=x^2+x$

Subtract $x^2$ to both sides

4 = x

OR

x = 4

$\rule[225]{225}{2}$

Hope this helped!

~AH1807

Answer 2

The given polygon is a square which means its all sides will be equal.

According to the above statement:-

$\tt \: x ^{2} + x = x ^{2} + 4$

Let's solve it ~

$\tt \cancel{x ^{2} } + x = \cancel{x ^{2} } + 4$

$\tt \: x = 4$

$\rule{300pt}{3pt}$

$\huge{|\underline{\mathtt{\red{S}\blue{i}\orange{d}\pink{e}\blue{s}\purple{:}\green{-}\red{}\blue{}\orange{}}}}$

$\sf \: x ^{2} + x \\ \sf \: 4 ^{2} + 4 \\ \sf \: 16 + 4 \\ \sf \: 20$

Thus, The sides of the polygon will be 20cm each!