The radius of a circle is 3 centimeters. What is the length of a 45 arc

12 answers
Question:

The radius of a circle is 3 centimeters. What is the length of a 45 arc

Answers

14.13

Step-by-step explanation:

Formula for  radius x radius x 3.14

9 x 3.14 = 28.26

Divide by two since half of a circle

14.13

28.26 cm for circumference

Step-by-step explanation:

we know radius

Circumference formula is

Pi*diameter

we double radius for diameter

which is 6

now for that 6 we multiply that by 3.14

and your final answer is 28.26

28.26 square centimeters

Step-by-step explanation:

The area of a circle is pi*r^2, with pi=3.14.

3.14*3^2=28.26 square centimeters.

6 cm

Step-by-step explanation:

The diameter is 2x the radius

[tex]A = \frac{9}{2} \pi\ cm^{2}[/tex]

Step-by-step explanation:

Area of a full circle is [tex]r^{2} \pi[/tex].

Area of a semicircle is exactly half of it: [tex]\frac{1}{2} r^{2} \pi[/tex].

[tex]A = \frac{1}{2} 3^{2} \pi = \frac{9}{2} \pi = 14.137\ cm^{2}[/tex]

Answer is provided in the image attached.


[tex]The radius of a circle is 3 centimeters. what is the circle's circumference?[/tex]

answer:

6

Step-by-step explanation:

The radius has to be multiplied by 2 to get a diameter.

R x 2 = D

3 x 2 = 12

Diameter =7.2cm

Radius =7.2 /2 =3.6cm

Circumference =2

Step-by-step explanation:

the answer is in the picture above


[tex]The radius of a circle is 3 centimeters. What is the circle's area?[/tex]

Step-by-step explanation:

The formula for a circumference of a circle is 3.14×diameter

3.14 × (3×2)

3.14×6

18.85

it is probably the graph on the bottom right.

a. turk and mcalister

b. howard, mission, and market

c. yes. since streets end some do not cross yet are not parallel to others. example: mcalister and 5th

step-by-step explanation:

parallel lines are lines which do not intersect ever and look a lot like railroad tracks. turk, mcalister and golden gate are examples of these.

intersect are streets which cross each other and a car on one can reach the other. howard, mission, and market intersect with 6th.

skew lines are lines which neither intersect nor are parallel. these lines exist here because some streets end and never intersect another like mcalister and 5th.

[tex]A. name the streets that are parallel to golden gate. b. name the streets that intersect 6th street.[/tex]

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