For what value of x will △ABC≅△XYZ?
In △ABC and △XYZ,
Given, BC = YZ = 6 cm - (side)
∠ABC=∠XYZ - (Right angle)
For △ABC to be congruent to △XYZ , AC should be equal to XZ - (hypotenuse)
Then by RHS postulate, △ABC≅△XYZ.
Therefore, the hypotenuse of both sides are to be equal.
∴x = 10 cm