
The surface area is increased 16 times.

The volume is increased 64 times.
The length of side can be calculated as
<span>s = √40
= √4x10
= 2√10</span>
This should be 2x^2 + 7x - 4
Answer:
The answer is option 5.
Step-by-step explanation:
The formula is V = 1/3×π×r²×h where r represnt radius and h is height. Given that the diameter of cone is 8 inches so the radius is 4 inches then substitute the value into the formula :

Let r = 4,
Let h = 12,


Answer:
i think its 8r^4
hope this helps
Step-by-step explanation: