The volume of a cube is height x length x width:

v = h x l x w
v = 2 x 2 x 1
v = 4

Parallel lines are lines that share the same slope (steepness) and therefore never intersect. A transversal occurs when a set of parallel lines are crossed by another line. All of the angles formed by a transversal are called interior angles and angles in the same position on different parallel lines equal each other (a° = w°, b° = x°, c° = z°, d° = y°) and are called corresponding angles. Alternate interior angles are equal (a° = z°, b° = y°, c° = w°, d° = x°) and all acute angles (a° = c° = w° = z°) and all obtuse angles (b° = d° = x° = y°) equal each other. Same-side interior angles are supplementary and add up to 180° (e.g. a° + d° = 180°, d° + c° = 180°).

To solve this equation, replace the variables with the values given and then solve the now variable-free equation. (Remember order of operations, PEMDAS, Parentheses, Exponents, Multiplication/Division, Addition/Subtraction.)

6b(b - y)
6(-8)(-8 - 3)
6(-8)(-11)
(-48)(-11)
528

An acute angle measures less than 90°, a right angle measures 90°, and an obtuse angle measures more than 90°.

The volume of a cylinder is πr²h:

v = πr²h
v = π(9² x 5)
v = 405π