We want to shade the smallest amount of squares needed to make the line AB a line of symmetry

Ineed to learn how to solve this problem

When you are making a circle graph by hand, how do you convert a number for a part into its corresponding angle measure in the circle graph? when you are making a circle graph by hand, what should you do if one of your angle measures is greater than 180°?

What is the factored form of the following expressions? d^2 – 13d + 36