Question

n the right triangle ABC, AB = 2, BC = 4 and ED is a line parallel to AB. Find the

angle α = angle BAD which minimizes the distance L, where L = AD + ED

Answer 1

In the right triangle ABC, AB = 2, BC = 4 and ED is a line parallel to AB. Find the

angle α = angle BAD which minimizes the distance L, where L = AD + ED

Solution;

In the triangle ABC with parallel line ED, the minimum AD + ED will be minimum when AD=AB. Hence, angle BAD should be 0°