Question

What kind of angle is each internal angle of a Square

Answer 1

For a square, the inner angles will all be Right Angles, meaning they have a measure of 90°. This is because all 2D shapes have an inner angle measure of (n-2)180° where n is the number of sides and all 4 angles of a square are equal.
This means that the measure of each angle in a square is:
$(4-2)180 =4x\\ x=\frac{(2)180}{4}\\ x=90$
Thus each inner angle has a measure of 90°.

Answer 2

Right angle there are 4 right angles of 90 degrees each