From a boat on the lake, the angle of elevation to the top of a cliff is 11°50'. if the base of the cliff is 1568 feet from the boat, how high is the cliff (to the nearest foot)?

Points j and k plotted on the coordinate grid are two vertices of rectangle jklm rectangle jklm has an area of 7 square units point j is located at 2,1 and point k is located at -5,1 each vertex of the rectangle is located at a point that has integer coordinates. what is the perimeter of rectangle jklm? (need answer asap)