4 and Angle5 are complements, and Angle1 and Angle5 are complements. 3 lines intersect and form 6 angles. Counter-clockwise, from top left, the angles are 1, 2, 3, 4, 5, right angle. By the congruent complements theorem, which angle is congruent to Angle4? Angle1 Angle2 Angle3 Angle5

Grace is standing 18 feet from a lighthouse and kelly is standing 10 feet from grace. the angle that grace looks up to see the top of the lighthouse is 45°. the angle that kelly looks up to see the top of the lighthouse is y°. find the height, h, of the lighthouse. find the angle, rounded to the nearest tenth of a degree, in which kelly looks up to the top of the lighthouse. to the nearest tenth of a degree, find the value of x° . in two or more sentences, explain your calculations