nments/754588 3. A man stands 200 ft to the left of where a car starts moving north. The car is moving at 50ft/sec. (a) Find the rate at which the diagonal distance from the man to the car is changing once the car has been traveling for 10 seconds. (b) Find the rate at which the angle O from the man to the car is changing at the same moment (10 seconds after the car starts moving). Round answers to 4 decimal places. 200 ft car (moving at 50 ft/sec) 4. The height of a triangle is increasing at a rate of 1 cm/sec while the area of the triangle is increasing at a rate of 2 cm-/sec. At what rate is the base of the triangle decreasing when the altitude of the triangle is 10 em and the area is 100 cm?. (Hint: The answer is negative. For a triangle, A = = bh)