What’s the greatest common factor for 24,30.42

Adam drew two same size rectangles and divided them into the same number of equal parts. he shaded 1/3 of one rectangle and 1/4 of the other rectangle. what is the least number of parts into which both rectangles could be divided into?

What is the measure of the smallest angle in the diagram? 15 29 32 45

Write a function for a rotation 90 degrees counter clockwise about the origin, point 0