A trough is 10 ft long and its ends have the shape of isosceles triangles that are 3 ft across at the top and have a height of 1 ft. If the trough is being filled with water at a rate of 12 $ft^3$/min, how fast is the water level rising when the water is 6 inches deep?
I'm confused at the diagram here and how to solve it. Help?
A kite 100 ft above the ground moves horizontally at a speed of 8 ft/s. At what rate is the angle between the string and the horizontal decreasing when 200 ft of string has been let out?
can someone help me with this? I'm not sure of the diagram that I need to draw and how to solve it.