Whose sequence proves triangle ABC is congruent to triangle DEF? Why?

The last time i bought this product , it cost $20.00 but it looks like it cost 29. 60 today? what is the increase

How many $20 bills do you need to have to make $280

Complete the steps, which describe how to find the area of the shaded portion of the circle. find the area of the sector by multiplying the area of the circle by the ratio of the to 360. subtract the area of the triangle from the area of the sector.