Which angle is congruent to ^^^

How many square feet of out door carpet will we need for this hole? 8ft 3ft 12ft 4ft

Acircle has a diameter will endpoints of (-2,8) and (6, 4). what is the center of the circle

What are the solutions of the equation? 16x^2 + 24x + 5 = 5 a. 1/4, 5/4 b. -1/4, -5/4 c. -1/4, 5/4 d. 1/4 , -5/4