ABCD represents the rectangular sloping surface of a solid. ABEF
is a rectangle which is horizontal and CE and DF are vertical
lines. AB = DC = FE = 40 cm, BC = AD = 30 cm , angle CBE = angle
DAF = 35 deg
Jumped to the last question.
Find the volume of the solid ABEC when it is cut off
from the solid.
The previous questions were find AC, CE and angle FAE (for
guiding purposes)
I got 4226cm3 if I remember correctly. I make use of the fact
that a rectangle could be form using an exact replica of the shape.
Next I find the volume of rectangle which is AB X BE X EC and to
get volume of the solid ABEC, I merely multiply 0.25 to volume of
rectangle. However the anwer is 2820cm3