Question relating to surface areas and volumes are common in BMAT exams.
It is important to know surface areas and volumes of some common shapes. 

2-D shapes do not have three dimensions. therefore, they cannot have a volume.
2-D Shapes

ShapePerimeterArea
Square4a
Rectangle2 (l + b)l x b
Circle2πrπr²
TriangleSum of 3 sides½ (b x h)
TrapeziumSum of 4 sides½ (a + b) h

3-D Shapes:

ShapeS.A.Volume
Cube6a²
Cuboid2lh + 2wh + 2lw(l x b x h)
Cylinder2πrh + 2πr²πr²h
Coneπr [r + √(h²+r²)]πr²(h ÷ 3)
Sphere4πr²⁴⁄₃πr³
Hemi-sphere2πr²²⁄₃πr³

3D Shapes