I hope this helps you
A=1/2.b.h
given Area is 24 and base is 8
24=1/2.8.h
24=4.h (divide 4 both of sides)
h=6 (height)
Well all triangles have an area of 180 degrees, therefore X=39 because 102+39=141 and 180-141=39.
Since a pentagon has five identical sides, rotating it by (360 degrees/5) will result in the same image. 360/5=72 degrees
