question_answer 30)

There are two set-squares in your box. What are the measures of the angles that are formed at their corners? Do they have any angle measure that is common?

Answer:

We have, two set-squares in our box. In one of them, angles are of \[{{30}^{o}},\,{{60}^{o}},\,{{90}^{o}}\]and in the others, angles are of \[{{45}^{o}},\,{{45}^{o}},\,{{90}^{o}}\]. Clearly, they have one angle measure in common, which is \[{{90}^{o}}\].