All categories

3 years ago

If you know the radius, r, of a circle, what do you multiply r by to get the circle's CIRCUMFERENCE?

Mathematics

2 answers:

UNO [17]3 years ago

5 0

Answer:

multiply the radius by 2π

Step-by-step explanation:

The formulas for circumference of a circle is

C = πD where D is the diameter,

C = 2πr where r is the radius.

Either formula is correct, but we will work with the second one since the question is asking about radius.

We see that 2π(r) = the circumference, so multiply r by 2π to get the circumference

ddd [48]3 years ago

4 0

Hello there! How are you doing? I am doing fine! I'll answer the question now.

So basically when wanting to find the circumference of a circle you simply use the formula, C = 2 times PI times R. PI is the infamous number known for 3.1415912654... and the R represents the radius. You would multiply 2 times PI and then after getting that you would basically multiply it by the radius. And then that would be the circumference and be the answer to any problem you face like this. Know that diameter is 2 times the radius and that all.

Hope this helped! Your welcome! I can help with other history stuff too! And byee! :)

You might be interested in

(05.05) On a coordinate plane the coordinates of vertices R and T for a polygon are R(-7, 3) and T(3,3). What is the length of S

Talja [164]

Answer:

c) 10 units

The length of side RT of the polygon RT = 10

Step-by-step explanation:

Step(i):-

Given the coordinates of vertices R and T

R( -7 ,3) and T (3 ,3)

we have to find the length of side RT

We will use distance formula

RT = $\sqrt{(x_{2} -x_{1})^{2} +(y_{2} -y_{1} )^{2} }$

Step(ii):-

RT $= \sqrt{(3-3)^{2} +(3-(-7))^{2} }$

$RT = \sqrt{0+(10)^{2} }$

RT = √100

RT = 10

The length of side RT of the polygon RT = 10

6 0

3 years ago

Help me plz I don’t get it

Rzqust [24]

Answer:

3.33

Step-by-step explanation:

each cube represents 1, so each flat represents 0.1 and each unit represents 0.01. so if there are 3 of each, it would be 3+0.3+0.03 which equals 3.33

3 0

3 years ago

Read 2 more answers

What is 1000 divide 60

Elenna [48]

Answer:

16.67

Step-by-step explanation:

8 0

3 years ago

Read 2 more answers

Which inequality is true

loris [4]

The correct answer is G

5 0

3 years ago

the table shows the balance of a money market account over time. write a function that represents the balancr y (in dollars) aft

Solnce55 [7]

Answer:

y = 1500 * 1.09^t

Step-by-step explanation:

It should be clear that the rate of change is non-linear, meaning that we can express the function in the following manner

y = a * b^t, where a is the initial value and b is the rate of change and t is how many years.

Well, year 0 is the rate of change so we can say that a = 1500

Next, we divide any two consecutive year balances to find our rate of change:

1635/1500 = 1.09

Therefore, our equation looks like this: y = 1500 * 1.09^t

6 0

3 years ago