In Exercises15 to 19, create drawing as needed.
Given:  Square
intersecting at 
Find: 

To find:
Approach:
For a right triangle for which the measure of the interior angles
Length of the other leg
Length of the hypotenuse
In general
Length of the legs are equal.
Length of the hypotenuse
Calculation:
Given,
By the property of a square that all the sides and diagonals are of equal in length and the diagonals bisect each other at right angle, we have
Thus,
Now, consider the right triangle
Since, two of the sides of the right triangle are congruent, the angles opposite to the sides must be equal and should be
Thus, the
Here,
By the application of
In a right triangle whose angle measures
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