Question

If the area of Triangle T, sides 5,12, and 13 equals the area of rectangle R, width 3, then what is the perimeter of rectangle R?

Answer 1

your triangle is right-angled, since
3^2+5^2=13^2
so the area is 30

so rectangle R is length x width = 30
3length = 30
length = 10
so its perimeter is 2(10+3) = 26

Answer 2

Where did you get 3^2 from?

Answer 3

I really don't know, lol, must be senility

of course I meant
5^2 + 12^2 = 13^2

the rest is still correct.

Answer 4

Lol, okay. Thank you very much !