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6.5 < 3rd side < 19.9.

Step-by-step explanation:

For a triangle, the third side must be more than the difference between the given side lengths, but less than the total of the given side lengths.

So, the third side must be more than...

13.2 - 6.7 = 6.5.

The third side must be less than...

13.2 + 6.7 = 19.9.

6.5 < 3rd side < 19.9.

Hope this helps!

80π/3 or about 83.775

step-by-step explanation:

since a cone is 1/3 of a cylinder, we need to find the base's area. since area = πr^2, we get 16π. then, multiplying this by 5, we get 80π. dividing by 3, since the cone's volume is 1/3 of that of a cylinder's, we get 80π/3.

hope this !