If you have two (45∘−45∘−90∘) set squares. Which of the following shapes is impossible to produce using them?
Rectangle
All squares are rhombus and parallelograms, hence from the figure given below it can be inferred that a rhombus, a square and a parallelogram can be obtained. We can also make a pentagon as shown in the figure. But we can never get a rectangle using 2 set squares with angles (45∘−45∘−90∘).