Answer:
A. V= area of base x height 1/3
(20x15)x30x1/3= 3000cm
B.65cm
C.CTCN is the angle between
tan<TCN= TN/NC=12/5
=67.380
D. 10\sqrt(10)
e.tan<TMN=TN/MN=3
<TMN=71.57
