To find the total volume of ice cream in and on top of the cone, we need to calculate the volume of the cone and the volume of the hemisphere separately and then add them together.
1. Volume of the cone:
Given formula: V = ⅓ 𝜋r^2h
Let's assume the height of the ice cream cone is h inches.
Since the diameter of the cone is equal to its height, the radius (r) is equal to half the height. So, r = h/2.
Substituting the values into the formula:
V_cone = ⅓ 𝜋(h/2)^2h
= ⅓ 𝜋(h^3/4)
2. Volume of the hemisphere:
Given formula: V = (2 ⁄ 3) π r^3
The hemisphere has a volume of 4 in^3. Now, we can find the radius of the hemisphere using the formula:
4 = (2 ⁄ 3) π r_hemisphere^3
Solving for r_hemisphere:
r_hemisphere^3 = 6/(π*(2/3))
r_hemisphere^3 = 9
r_hemisphere = ∛9
r_hemisphere ≈ 2.08
Now, we can substitute the radius of the hemisphere into the formula to calculate the volume:
V_hemisphere = (2 ⁄ 3) π(2.08)^3
Finally, to find the total volume, we can add the volumes of the cone and the hemisphere:
Total volume = V_cone + V_hemisphere
Let's plug in the values into the formulas and calculate the total volume.