4) Mr. Lancing:l wants to climb the cliff below. But he can only climb up to 20 m without getting tired and falling. He asks some of his students to calculate the height of the cliff before he starts climbing. From point K, Kishan uses a clinometer to determine the angle of elevation to the top of a cliff at 43 degrees. From point M, 23 m away from the base of the cliff, C, Mekl used a sighting compass to determine the angle between the base of the cliff, himself and Kishan to be 35 degrees. Kishan uses the sight compass to determine the angle between the base of the cliff, himself and his classmate Meki to be 56 degrees. What is the height of the cliff to the nearest tenth of a meter and should Mr. Landry attempt to climb the cliff