The radius of the circle above is 7 in. What is the circumference of the circle? (Use = 3.14)

10 answers
Question:

The radius of the circle above is 7 in. What is the circumference of the circle? (Use = 3.14)

Answers

43.96

Step-by-step explanation:

Circumference formula : 2πr

2π(7) = 14π

π is about 3.14

14(3.14) = 43.96

(x-h)²+(y-k)²=r² is the equation of a circle with radius of r

so if x-h=4 and y-k=3 then

4²+3²=r²
16+9=r²
25=r²
sqrt both sides
5=r
radius is 5 units

113.04

Explanation:

6 x 6 = 36

36 x 3.14 = 113.04

18.84  in

Step-by-step explanation:

C= 2(pi)r

c= 2(3.14)(3)

c=18.84 in

200.96

Step-by-step explanation:

The circumference of a circle can be found using:

c=2*pi*r

We know that the radius is 32 millimeters. We also know we are using 3.14 for pi. So, we can substitute 32 in for r and 3.14 in for pi.

c=2*3.14*32

Multiply all the numbers together

c=64*3.14

c=200.96

The circumference is 200.96 mm.

200.96mm or 20.096cm

Step-by-step explanation:

The formula for circumference of a circle is C=2pi*r

r is the radius, pi is equal to 3.14. Input into the equation and you get the answer 200.96mm.

A. 207.24

Step-by-step explanation:

2 × π × r = 2 x 3.14 x 33 = 207.24

b

Step-by-step explanation:

C

Step-by-step explanation:

C = Pi x Diameter

Diameter = Radius x 2

38 x 2 = 76

76 x Pi = 238.64 mm = C

C≈18.85in

Step-by-step explanation:

This would be the correct answer but it's not there so IDK

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