The perimeter of a square is 20. Find the length of the diagonal

d≈7.07

Step-by-step explanation:

Using the formulas

P=4a

d= \sqrt{2} a

Solving ford  

d= \sqrt{2} P/4=2·20 /4≈7.07107

Then length of diagonal is 5√(2)

Step-by-step explanation:

Perimeter(p)=20

Perimeter of square(p)=4xLength(L)

20=4 x L

Divide both sides by 4

20/4=4L/4

5=L

L=5

Length of diagonal=√(5^2+5^2)

Length of diagonal=√(5x5+5x5)

Length of diagonal=√(25+25)

Length of diagonal=√(50)

Length of diagonal=√(25x2)

Length of diagonal=√(25)x√(2)

Length of diagonal=5x√(2)

Length of diagonal=5√(2)

step-by-step explanation:

in the attachment.   i didn't see your choices.   the word which means there is choices.

step-by-step explanation:

(x,y)

x tells you how much left or right you go from the origin

y tells you how much down or up you go from the origin

so for example (-3,2), you go left 3 and up twice. i denoted which of the ordered pairs is which in my graph.