construct a rectangle wxyz where wx=5cm and wy = 7cm.
I only want to know the length of wz=? using hypotenuse property.
to construct a rectangle, there is no need to calculate wz.
steps of constructions:
1. draw a line wx = 5 cm
2. at point w , draw a right angle wp and at point x , draw a right angle xq.
3. from the point w, draw an arc of length 7 cm , let it intersect xq at y.
4. from the point x, draw an arc of length 7 cm, let it intersect wp at z.
thus the rectangle wxyz is the required rectangle.
hope this helps you.