Answer:

Step-by-step explanation:


X=18 and y=10 because they are both 90degree angles therefore all you have to do is solve the equations: 5x=90 and 9y=90.
Area of a triangle is 0.5* perpendicular height* base
0.5*4*8
Where four is the perpendicular height and eight is the base
Therefore, area is equal to 16