Question

Find the perimeter of a rectangle? Given: Diagonal=7is square route of 5 area= to 98

Answer 1

Do you know the formula of area of a rectangle?

Answer 2

Area is = LXW

Answer 3

and the perimeter is 2b+2h

Answer 4

If Im not mistaken I should find first the Length and the Width then substitute the values then solve for the perimeter now

Answer 5

now, we need W and L right?

Answer 6

thats it !

Answer 7

Should i use the Pythagorean theorem

Answer 8

do you know pythagorean theorem?

Answer 9

c^2=a^2+b^2

Answer 10

hey!! should use the same notation, in this case it is??

Answer 11

I can get the diagonal \[7\sqrt{5}\] =a^2 + b^2

Answer 12

I realize that you know everything. However, you will mess it up by using different notation on 1 problem

Answer 13

but im a little bit confuse. i tried this formula look.

Answer 14

W*L= 98
\((7\sqrt5)^2= W^2+L^2\)