Answer:
B y+8 = 2(x-4)
Step-by-step explanation:
perpendicular slope is a negative reciprocal of the x
which is 2x
then use the formula
y-y1 = m(x-x1)
y + 8 = 2(x-4)
The answer is 31 1/6, I hope this helps!
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.