This pyramid has the same base as the prism, and its height is three times the height of the prism. What is the ratio of the volume of the pyramid to the volume of the prism?
A.
B.
volume of pyramid
- 1
volume of prism
volume of pyramid
volume of prism
volume of pyramid
= 3
volume of prism
volume of pyramid
volume of prism
C.
D.
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9 D
11:09

Apinhole camera is made out of a light-tight box with a piece of film attached to one side and pinhole on the opposite side. the optimum diameter d(in millimeters) of the pinhole can be modeled by d=1.9[ (5.5 x 10^-4) l) ] ^1/2, where l is the length of the camera box (in millimeters). what is the optimum diameter for a pinhole camera if the camera box has a length of 10 centimeters