Volume of cone = (1/3)pi*r²h
56.52 = (1/3)*3.14*r²*6
56.52/(2*3.14) = r²
9 = r²
r² = 9
r = √9
r = 3
Diameter = 2*r = 2*3 = 6 inches. b.
First, convert those inches to feet.
7in =ish 0.5833333
(you find this by dividing 7/12 on a calculator)
Now you just square 9.583333333
9.583333333^2
9.583333333 * 9.583333333
91.84027777ish
Rounded to the nearest foot, means the answer is 92ft.
The formula for the surface area of a cylinder is:
2<span>π</span><span>r</span><span>h </span><span>+ </span><span>2</span><span>π</span><span>r^</span><span>2
If we substitute in the measurements that we know, you get:
2</span><span>

(3.5) (14) + 2</span><span>

(3.5)^2
If we simplify this expression, we get:
98</span><span>

+ 24.5</span><span>

If you simplify once more, you get
122.5</span><span>

or </span><span>≈ 384.85
Therefore, the surface area is 122.5</span>

or about 384.85<span>
</span>
Answer:
6+0.005
Step-by-step explanation: