Answer:
A
Step-by-step explanation:
Surface area of the cylinder = 816.4 sq. ft.
Solution:
Height of the cylinder = 21 ft
Diameter of the cylinder = 10 ft
Radius of the cylinder = 10 ÷ 2 = 5 ft
Use the value of
= 3.14
Surface area of the cylinder = 
Substitute the given values in the surface area formula, we get
Surface area of the cylinder 

ft²
Hence the surface area of the cylinder is 816.4 sq. ft.
Given:
The length of the lot l= 750ft
The width of the plot w= 540 ft
Required:
Find the required fence.
Explanation:
The perimeter of the rectangle is given by the formula.

Thus the required fence for the lot

Final answer:
The required fence is 2580 ft.
Step-by-step explanation:
Hey there!
<u>Use</u><u> </u><u>cos</u><u> </u><u>ratio to</u><u> </u><u>find </u><u>the</u><u> </u><u>value</u><u> </u><u>of</u><u> </u><u>'</u><u>a'</u><u>.</u>
As per given, we can state that it is a Right angled triangle, so taking 38° reference angle.
We get;
p = AC
b = 6
and h= a
Here, <u>Use</u><u> </u><u>the</u><u> </u><u>value</u><u> </u><u>of</u><u> </u><u>b</u><u>,</u><u> </u><u>h</u><u> </u><u>and</u><u> </u><u>3</u><u>8</u><u>°</u><u> </u><u>angle</u><u> </u><u>to</u><u> </u><u>find</u><u> </u><u>the</u><u> </u><u>value</u><u> </u><u>of</u><u> </u><u>a</u><u>.</u>


[ cos(38°=0.7881]


Therefore the measure of a is 7.61 Or 8.
<em><u>Hope</u></em><em><u> </u></em><em><u>it helps</u></em><em><u>.</u></em><em><u>.</u></em>
7. 4:6
8. 6 to 8
9. 4 to 6
10. 10:14
11. 22:18
12. 4 to 1
13. 2:12
14. 1 to 5
15. 14:22
16. 1:3