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stich3 [128]
3 years ago
7

What is the exact circumference of the circle?

Mathematics
2 answers:
Delicious77 [7]3 years ago
8 0

For this case, we have that by definition, the circumference of a circle is given by:

C = \pi * d

Where:

d: Is the diameter of the circle given by 2r, that is, twice the radius.

If we have a circle with a diameter equal to 8cm, then the circumference is given by:

C = \pi * 8 \ cm

ANswer:

Option C

8 \pi \ cm

inn [45]3 years ago
8 0

Answer:

The correct answer is option 3). 8π cm

Step-by-step explanation:

<u>Formula for circumference of circle</u>

circumference  = 2πr   where r is the radius of circle.

It is given that, Circle with center D and diameter of 8 cm labeled.

<u>To find the circumference</u>

diameter = 8cm

radius = diameter/2 = 8/2 = 4

circumference  = 2πr

circumference  = 2 * π * 4 =  8π

Therefore the circumference of given circle is

The correct answer is option 3). 8π

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3 years ago
Choose the pair of numbers that is not a solution to the given equation.
balandron [24]

Answer:

The pair (0,3) is not a solution to the equation

Step-by-step explanation:

This can be proved by simply replacing the x and y variables in the equation by the x and y values of the pair, and checking if the equation renders a true statement:

By replacing x and y with their values in the pair (0,3), that is x=0 and y=3, in the equation y = 5 - 2x  we get:

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On the other hand, the other two pairs (2,1) and (1,3) render true statements:

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3 years ago
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