The base of pyramid P is an isosceles right triangle whose leg is 3. If the height of P is 4, what is the volume of P?  Choose the correct choice from the following
A) 36	B) 18	C) 12	D) 8	E) 6

Rationale: volume of a pyramid is given by v = 1 / 3 ah , where a is the area of the triangular base and h is the height of the pyramid . area of triangular base = 1 / 2 * 3 * 3 = 9 / 2 so , v = 1 / 3 * 9 / 2 * 4 = 6 option e
Answer: E