A square pyramid has base edge length 18 cm. The slant height of the pyramid is 41 cm. What is the volume of the pyramid?
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Looking at the prism, we see there is a right traingle with hypothenuse 41 and leg length of 18/2. Then, the other side must be 40 by pythagorean
theorem. Thus, the volume is \(\frac{1}{3}\cdot 18^2\cdot 40=4320\)
