The correct Options are :
A. The composite figure consists of two rectangular pyramids.
- they are joined together to form the given figure, stacked to each other on their base.
D. total volume is 45 unit³
=》
=》
=》
now, Since there are two pyramids in the figure on same base and height,
their volume will be equal,
So, Area of Composite figure :
=》
(since, there are two pyramids)
=》
hence, the volume of the given figure = 45 units³