Respuesta :

Answer:

The height is 50 inches

Step-by-step explanation:

Volume for a triangular pyramid is

V = 1/3 BH

where b is the base

Since this is a triangle, we use 1/2 b*h .  We are given the base and the height of the triangle

B = 1/2 *12*18

B = 108

Using the formula for volume

V = 1/3 *108 *H

1800 = 36H

Divide each side by 36

1800/36 = 36H/36

50 = H