1.) The top of the 100 foot vertical tower is to be anchored by cables which make the angle of 60 degrees with ground. How long much each cable be? How far from base of tower must anchors be placed?
2.) The survey team is trying to evaluate height of the mountain above the level plain. From one point on plain, they observe that angle of elevation to top of mountain is 25 degrees. From the point 1200 feet closer to mountain along plain, they find that angle of elevation is 29 degrees. How high is the mountain?
3.) The 19 -ft ladder leans against the building so angle between ground and ladder is 82 degrees. How high ladder reaches on building?