First, we need to find the radius: r = )^2 + 1^2) = sqrt(10) sin ( theta) = y/r = 1/sqrt(10) = sqrt(10)/10 cos (theta) = x/r = -3/sqrt(10) = -3sqrt(10)/10 tan(theta) = y/x = -1/3

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