Answer :
The volume of the pyramid whose height be 30 cm and the base area be 126 cm² is 1260 cm³. The correct option is B.
What is Geometry?
It deals with the size of geometry, region, and density of the different forms both 2D and 3D.
We know that the volume of the pyramid is given as
[tex]\rm V = \dfrac{1}{3} *A * h[/tex]
where A is the area of the base and h be the height of the pyramid.
The area of the base triangle will be
[tex]\rm A = \dfrac{1}{2}* 14* 18\\\\A = 126 \ cm^2[/tex]
Then the volume of the pyramid will be
[tex]\rm V = \dfrac{1}{3} *126*30\\\\V = 1260[/tex]
Thus, the volume of the pyramid is 1260 cm³.
More about the geometry link is given below.
https://brainly.com/question/7558603