the diagram shows a rectangle. the longest length of the rectangle is x cm. the length of the diagonal is 10cm. the perimeter of the rectangle is 28cm. find the value of x

other answer is correct. i had used the radius of the radius somehow. a website:

hello from mrbilldoesmath!

answer:   x^2 + y^2 = 1024

discussion:

the equation of a circle with center (h,k) and radius "r" is

(x-h)^2 + (y-k)^2 = r^2.

in our case

(x-0)^2 + (y-0) ^2 = 32^2 = 1024

you,

mrb

the answer is a. 72. but i cant answer with less than 20 characters so here's some random text talking about it.