Ice cream maker

Ice cream maker Eda has invented a new nice cone in the shape of a regular four-sided pyramid, in which he will sell his ice cream. The cone will have a side edge length of 5 cm and a wall height of 4 cm. In order to mass-produce it in the factory, they still need to determine the dimensions of the base.

What is the length of the edge of the base?

Correct answer:

a =  6 cm

Step-by-step explanation:

$$\begin{gathered} s=5\text{cm} \\ {h}_1=4\text{cm} \\ a=2\cdot \sqrt{s^2-h_1^2}=2\cdot \sqrt{5^2-4^2}=6\text{cm} \end{gathered}$$

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