We know that Mrs. Delgado stores cookies in a jar that is a with the height of 12 inches and a base with side lengths of 14 inches. Let's draw a diagram for this situation.
Now, we want to find the of the jar. We can do this using a known .
V=1/3Bh
In this formula, B is the area of the base and h is the height. Let's find the area of the pyramid's base! Remember that the equals the squared length of the side.
B=s^2 ⇒ B&= 14^2
&= 196
The area of the pyramid's base is 196 square inches. Because we also know the height of our pyramid, we can substitute these values into the formula and calculate V. Let's do this!
V=1/3Bh
V=1/3( 196)( 12)
V=784
The volume of the pyramid-shaped jar that Mrs. Delgado stores cookies in is 784 cubic inches.
