Given:
Cone 1:
Diameter, d = 7 cm
Height, h = 9 cm
Radius, r = diameter ÷ 2 = 7 ÷ 2 = 3.5 cm
Cone 2:
radius, r = 4cm
Height, h = 7 cm
To find the volume of each cone, apply the formula:
[tex]V=\frac{1}{3}\pi r^2h[/tex]Volume of Cone 1:
[tex]\begin{gathered} V=\frac{1}{3}\pi\times3.5^2\times9 \\ \\ V=1.0472\times12.25\times9 \\ \\ V=115.45cm^3 \end{gathered}[/tex]Volume of Cone 2:
[tex]\begin{gathered} V=\frac{1}{3}\pi\times4^2\times7 \\ \\ V=1.0472\times16\times7 \\ \\ V=117.29cm^3 \end{gathered}[/tex]Thus, we have:
Volume of cone 1 = 115.45 cubic centimeter
Volume of cone 2 = 117.29 cubic centimeter
We can see that volume of cone 1 is smaller than the volume of cone 2. Therefore, cone 1 is the smaller cone.
The number in the ones place is the number before the decimal point.
Given the volumme of the smaller cone:
115.45
The number in the ones place is 5
Therefore,
