The measure of a side of a square field is $$2x ^{2}+3$$
What is its perimeter?

$$A.)8x ^{2}+12$$
$$B.)4x ^{2}+9$$
$$C.)20x ^{2}$$
$$D.)20x^{8}$$

Question

The measure of a side of a square field is $$2x ^{2}+3$$
 What is its perimeter?

$$A.)8x ^{2}+12$$
$$B.)4x ^{2}+9$$
$$C.)20x ^{2}$$
$$D.)20x^{8}$$

jim766 · Answer

a square has 4 equal sides. You know one of them.  Multiply it by 4

4 (2x^2 + 3)

jim766 · Answer

distribute the 4

jim766 · Answer

let me know if you have questions

anonymous · Answer

im confused ?

jim766 · Answer

what part confuses you?

anonymous · Answer

everything

jim766 · Answer

do you understand what perimeter is?

anonymous · Answer

yes all the side add them right

jim766 · Answer

yes, that is true, the perimeter is the distance around a shape.  You can get it by adding all the sides up. 

In this case our shape is a square.  how many sides does a square have?

anonymous · Answer

ummm

jim766 · Answer

a square has 4 sides
|dw:1371137213730:dw|   and all of the sides are the same length, true?

anonymous · Answer

yes

jim766 · Answer

and what is the length of our square?  they gave it to you in the problem

anonymous · Answer

is it the whole equation ?

jim766 · Answer

the whole expression      2x^2 + 3 is the length of one side. 

we have 4 of these sides, so we can find the perimeter by taking the one side we know and multiplying It by 4

4 (2x^2 + 3)

8x^2 + 12   would be the perimeter

hope this helps

anonymous · Answer

i get now :o