Question

What is the measure of angle 3?

A. 120 degrees

B. 90 degrees

C. 45 degrees

D. 30 degrees

Answer 1

c.45 degrees

Explanation:

90 -180= 90

90÷2=45

Answer 2

For this case, we have by definition, that the four internal angles of a square measure 90 degrees. If we draw the diagonals of the square we have that the angles are divided between 2, that is, they go to measure 45 degrees.

So, according to this definition we have to:

`Angle\ 3 = \frac {90} {2}\\Angle\ 3 = 45`

Answer:

The angle 3 is 45 degrees

Option C