Mathematics: Find the area and circumfrence of circle with radius 9cm use the value 3.14 to with answer

Hyperbola, with horizontal diretrix at a distance of 3/2 units above the poleStep-by-step explanation:...

Find the area and circumfrence of circle with radius

legendman27

09.01.2022

Area = 254.34 square centimeters

Circumference = 56.52 centimeters

Step-by-step explanation:

We will use the formula for area and circumference of a circle to solve this.

Area = $\pi r^2$

Where π is the constant taken as 3.14

r is the radius, given as 9 cm

Let's substitute and find the area:

$A=\pi r^2\\A=(3.14)(9)^2\\A=254.34$

Area = 254.34 square centimeters

Now, the formula for circumference is:

Circumference = $2\pi r$

Where π is the constant taken as 3.14

r is the radius, given as 9 cm

Substituting, we find the answer to be:

Circumference = $2\pi r = 2 (3.14)(9) = 56.52$

Thus,

Circumference = 56.52 centimeters

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