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Alex Ar [27]
3 years ago
11

What’s the area of a circle if the diameter is 80

Mathematics
2 answers:
aleksley [76]3 years ago
8 0

The area of a circle if the diameter is 80 is

A=5026.55

noname [10]3 years ago
7 0
The area of a circle is pi * radius squared. the diameter of a circle is two times the radius, so the radius of this circle is 40. so the area of this circle is 40^2 times pi, which is about 5026.55.
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Answer:

The allowable lengths of pipe is from 21.78 inch to 22.22 inch.

Step-by-step explanation:

The length of the each pipe in the shipment =  22 inch

The variation in the length of pipes  = 1%

⇒The allowable length of pipe in the inspection  = 22 inch ± 1%

Now, 1% of 22 = \frac{1}{100}  \times 22 = 0.22

So,  22 inch + 1% = 22 inch + 0.22 =  22.22 inch

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Hence, the allowable lengths of pipe is from 21.78 inch to 22.22 inch.

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