Question

❑XYZW is a rectangle. If XY + YZ = 7 and XZ + YW = 10, then find XY.

Answer 1

Answer:

XY=3or4

Step-by-step explanation:

XY+YZ=7

XZ+YW=10

XZ=5(diagonals are equal)

by Pythagoras thm,

XZ^2=xy^2+yz^2

=(xy+yz)^2-xy*yz

5^ 2= 7^2-xy*yz

xy*yz=49-25

xy*yz=24,but xy+yz=7

solving these equation, we get xy=3 or 4

Answer 2

ferdin give right answer...............