Answer:
Length is 138 ft, area is 412 ft
Step-by-step explanation:
The length is determined by the perimeter, so add both side of the perimeter together, and you have your length. Area is determined by perimeter + Length, to add both sides of perimeter and length and you get 412 ft.
X=22
(X+1)+ (3x+1)= 90
4x+2=90
4x=88
x=22
37+53=90 so 180-90=90
x=90
x= 180-(37+53)
x= 90 ✅
Answer:
87.96 square inches
Step-by-step explanation:
The soup can is a cylinder, and we can find how many square inches the label will take up by finding the lateral surface area
Use the formula, LA = 2
rh
The diameter is 4 inches, so the radius is 2 inches
Plug in the radius and height into the formula, and solve:
LA = 2
rh
LA = 2
(2)(7)
LA = 28
= 87.96
So, the label will take up approximately 87.96 square inches
The area of the cylinder is a function of its height (h) and radius, (
)
The exact value of h is: 
The given parameters are:


The surface area of a cylinder is calculated as:

Substitute values for Area

Divide through by pi

Substitute value for r



Collect like terms

Make h the subject


Rationalize


Hence, the exact value of h is: 
Read more about surface areas t:
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