Respuesta :
Answer:
Volume of the rock=[tex]V=\frac{1}{3} (17)(12)[/tex]
Step-by-step explanation:
Volume of triangular pyramid = [tex]\frac{1}{3} BH[/tex]
Where B is the area of base
H is the height of pyramid
Length if base of base triangle = 8.5 inches
Height of base = 4 inches
Area of base triangle = [tex]\frac{1}{2} \times base \times height = \frac{1}{2} \times 8.5 \times 4=17 inches^2[/tex]
Height of pyramid = 12 inches
Volume of triangular pyramid = [tex]\frac{1}{3} BH=\frac{1}{3} (17)(12)[/tex]
So, option D is true
Volume of the rock=[tex]V=\frac{1}{3} (17)(12)[/tex]