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?

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Solution

One set-square has $45^{\circ}, 45^{\circ}, 90^{\circ}$ and other set-square has $30^{\circ}, 60^{\circ}, 90^{\circ}$ .
Therefore, they both have $90^{\circ}$ as corner angles and common angle.

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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?

One set-square has 45∘,45∘,90∘ and other set-square has 30∘,60∘,90∘.Therefore, they both have 90∘ as corner angles and common angle.

One set-square has $45^{\circ}, 45^{\circ}, 90^{\circ}$ and other set-square has $30^{\circ}, 60^{\circ}, 90^{\circ}$ .
Therefore, they both have $90^{\circ}$ as corner angles and common angle.