aisea1003 aisea1003
  • 20-01-2021
  • Mathematics
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The perimeter of a rectangle is 70 and it's diagonal is 25. Find it's length and width.

Respuesta :

tatamep tatamep
  • 20-01-2021
P=70
d=25
Let’s name length y and width x
x+x+y+y=70
2x+2y=70
Now we need to write phytagoras theorem for the second equation. x^2+y^2=25^2
x^2+y^2=625
{2x+2y=70
{x^2+y^2=625

{x=35-y
{(35-y)^2+y^2=625

Now just solve it for y yourself❤️hope this helped
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