$\"\"$

Volume of a pyramid is $\"\"$ .

From the diagram base of the pyramid is a triangle. So, use area of the triangle to find B.

Area of the triangle is $\"\"$ . So, $\"\"$ .

$\"\"$ (Sustitute 3 for b and 6 for w)

$\"\"$ (Multiply: $\"\"$ ) $\"\"$

$\"\"$ (Apply formula for volume of a pyramid)

$\"\"$ (Substitute 9 for B and 4 for h)

$\"\"$ (Multiply: $\"\"$ )

$\"\"$ (Divide: $\"\"$ ) $\"\"$

The volume of the pyramid is $\"\"$ .