Answer:
f = 6, g = 8.
Step-by-step explanation:
The area of ABCD = f * g so
fg = 48.
The area of the trapezium ABCE
= 1/2 * (g + g + 4) * f = 60
f/2 ( 2g + 4) = 60
fg + 2f = 60
But fg = 48, so
48 + 2f = 60
2f = 12
f = 6
and therefore g = 48/f = 48/6
= 8 .
