Angle 2=3, so angle 1=4 because angles ABC & BCD equal 90°. When you add together the angles of a triangle you get 180 and if you could put angle 1 and 4 together it would look like an upward version.
That is the best way I could describe it. Hope that helps.
Answer:
The first equation, sorry can’t explain.
The prime factor of the 576 is
and the prime factor of the 64 is
. And the expression
is equal to 3.
<h3>What is simplification?</h3>
Simplification is to make something easier to do or understand and to make something less complicated.
Given
The expression is 
The prime factor of the 576 will be

The prime factor of the 64 will be

Then the expression will be

More about the simplification link is given below.
brainly.com/question/12616840
I think it is coefficient, hope this helps!