Answer: A, 75.4 cm^3
Explanation:
The formula for the volume of a cone is
, but in this case
will be substituted for 3.14, as this is what the question requests.
If you look at the diagram, you can see that height (h) is 8cm and the radius (r) is 3cm (it shows the diameter is 6cm. Divided by 2 is 3cm).
We can substitue these values into the equation and we get:
According to BEDMAS, we do exponents first.
Then, with a scientific calculator (you can use DESMOS scientific calculator online) we can multiply these three values together.
We get:
Since we need to round to the nearest tenth, we end up with 75.4cm³, which is answer A