oneydavargas55 oneydavargas55
  • 03-03-2021
  • Mathematics
contestada


Suppose the area of a circle is 78.5 square units, what process
would you use to find its radius? Then find the radius.

Suppose the area of a circle is 785 square units what process would you use to find its radius Then find the radius class=

Respuesta :

Аноним Аноним
  • 03-03-2021

Answer:

So we have to remember that the formula for the area of a circle is C=2πr or πd, which mean the same thing, 2 x r = d, if it makes sense.

I would use C=πd, just because it would make the process less confusing

Lets use 3.14 for π

C=πd

C/π = d

d/2 = r

78.5 = (3.14)(d)

78.5/3.14 = d

25.0 = d

25/2 = 12.5=r

Answer Link

Otras preguntas

Which substance will combine with oxygen gas to produce a greenhouse gas? a. Na b. S c. H₂ d. Ne e. C
What organs work with skin?
What is 68 divided by the square root of 4
A mouse population starts with 2,000 mice and grows at a rate of 5% per year. The number of mice after t years can be modeled by the equation, P(t)=2000(1.05)^t
after clicking the start button on your computer screen desktop what option would you then select to examine system components you might want to modify?
The following statements about carbon dioxide are true EXCEPT a. It can be prepared by the action of acid on CaCO₃ b. It is used in fire extinguishers c. It d
Is STM semantically or acoustically encoded??
The following statements about carbon dioxide are true EXCEPT a. It can be prepared by the action of acid on CaCO₃ b. It is used in fire extinguishers c. It d
Which of the following oxides can dissolve in water to form a solution that would turn litmus indicator red in color? a. MgO b. K₂O c. CO₂ d. ZnO e. H₂O
why did  the volcano explode