Suppose the circumference of a circle is . What is its area?

Answers

Answer 1
Answer: Circumference = (π) x (diameter)
Circumference = 8π
(π) x (diameter) = 8π
Diameter = 8
Radius = 4

Area = π x (Radius)²
Area = π x (4)²
Area = π x (16) = 50.27 units² (rounded)

Answer 2
Answer: Well, its diameter would be 8, making its radius 4. The formula for finding the area of a circle is π x radius^2. So, the area would be ^2.

Related Questions

If 2x^2 + 6x = 36, what are the possible values of x ?
How is the graph of the cosine function different from the graph of the sine function? How is it the same?
Please help. are they Parallel, perpendicular or neither
Help please help with this question
Since there are 5,280 feet in one mile and 3.3 feet in one meter, how many meters per second are equivalent to 60 miles per hour?a.) 26 meters per second b.) 198 meters per secondc.) 266 meters per secondd.) 290 please explain.

A circle has a radius of 6 in. The inscribed equilateral triangle will have an area of:

Answers

Answer:

27√3

Step-by-step explanation:

Length of a side of an equilateral triangle inscribed in a circle =

r√3, where r is the radius of the circle

Therefore, Area =

√3 a^2/4

a=6√3

a/Asin = b/Bsin = c/Csin

c = a * sin C/sin A = 6(sin 120/sin 30) = 6√3

Answer:6 √3

Step-by-step explanation:

Length of a side of an equilateral triangle inscribed in a circle =

r

3

where r is the radius of the circle

Therefore, Area =

3

a

2

4

a

=

6

3

What is the value of pi?
(π)

Answers

The answer to your question is 3.14

3.14 is the value of pi.. lol

You have six trophies to arrange on the top shelf of the bookcase how many ways are there to arrange the trophies

Answers

Answer:

So, we can do it in 720 ways.

Step-by-step explanation:

We have been given total of six trophies to arrange in the top shelf of the bookcase  

If we need to arrange n things in different ways we can do it in n! ways

Similarly, Here we will do it in 6! ways

n!=n(n-1)(n-2).....1

So, 6!=6 x 5 x 4 x 3 x 2 x 1=720

The width of classroom is 4 meters less than the length, and the area is 192m^2. If the length is x m, find an equation in x and hence, find the dimensions of the classroom

Answers

Step-by-step explanation:

x(x-4) = 192

the Equation:

x²-4x -192 =0

=> (x-16) (x+12) =0

x= 16 or x= -12

since the x should be a possitive, so x = 16

the dimension :

the length = 16 m

the width = 12 m

Diagonals AC and BD of a rhombus ABCD meet at O . If AC=8cm and BD=6cm , find sin √OCD.

Answers

Due to the symmetry of the rhombus; AC = 2OC and BD = 2OD. Hence, we can say that OC is 4cm and OD is 3cm. Then we can say that sin(OCD) = OC/CD [CD = sqrt(OC^2 + OD^2)].

At the end, did you mean sqrt(sin(ocd)) or sin(sqrt(ocd)). Either way you can find angle OCD by doing arcsin(OC/CD).

Evaluate the function f(x) = x2 + 3x for both of the following: a. Find f(0)
b. Find f(4)
PLEASE ANSWER QUICK

Answers

f(x)=x²+3x

f(0)=0²+3*0=0+0=0

Answer: f(0)=0

f(4)=4²+3*4=16+12=28

Answer: f(4)=28