TOT 157 1987 Autumn S1 area of quadrilateral by perpendiculars
Source:
April 19, 2020
areageometryperpendicularsquare
Problem Statement
From vertex in square (of side length ) two lines are drawn , one intersecting side and the other intersecting side . The angle between these lines is . From vertices and we construct perpendiculars to each of these lines . Find the area of the quadrilateral whose vertices are the four feet of these perpendiculars.