54*2 (C)
Here’s the way I did it! Hope this helps.
9*3*2= 54
The and only reason why am we not are mejor
49m
Answer:
—1=<x<-3
Since
X<-3
X>=-1
Not shaded means including.
Total volume is volumes of both square pyramids.
Volume of a tetrahedron is 1/3 times corresponding prism, and a square pyramid has two tetrahedrons.
Thus, volume of on square pyramid:
Since there are two of them, total volume is:
$\boxed{\frac{2a^2b}{3}}$