Answers

1. Answer:

   65.94 in³

   Step-by-step explanation:

   First, we need to determine to the shape, a party hat is a cone.

   The volume formula that use to calculate the cone is 1/3hπr².

   Notice: h is for height and r is for radius

   Using this formula, we can easily set up the equation below:

   1/3 · 7 · 3.14 · (6/2)²  = 65.94 (cubic inches)

   You must halved the diameter first (in this case, 6) and then square it.

   So: The answer of this question is 65.94 in³

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