Question 1065916
.
Make a sketch.


<pre>
Find two right-angled triangles.

For each of these two right-angled triangles you have given a hypotenuse and one of the two legs.

Apply the Pythagorean theorem and find the second leg for each of the two right-angled triangles.


Then two options are possible:

a) QR is the sum of lengths of these legs,   or

b) QR is the difference (if the original triangle is obtuse).
</pre>