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Find the circumference and the area of a circle with radius 3 m.
Use the value 3.14 for it, and do not round your answers. Be sure to include the correct units in your answers.
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Circumference:
Area:
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Find The Circumference And The Area Of A Circle With Radius 3 M Use The Value 314 For It And Do Not Round Your Answers Be Sure To Include The Correct Units In Y class=

Sagot :

Sarah06109

Answer:

[tex]\boxed {c= 18.84 \ m}[/tex]

[tex]\boxed {a=28.26 \ m^2}[/tex]

Step-by-step explanation:

We are asked to find the circumference and area of a circle with a radius of 3 meters.

1. Circumference

The circumference is the perimeter of a circle. It is calculated using the following formula:

[tex]c= \pi d[/tex]

We know the radius of the circle is 3 meters, but we must find the radius. The radius is the line from the center to the circle's edge, while the diameter is the line through the center from edge to edge. Therefore, the diameter is twice the radius.

  • d= 2 r
  • d= 2 * 3 m
  • d= 6 m

The diameter is 6 meters and we are using 3.14 for pi. Substitute these values into the circumference formula.

[tex]c= (3.14)(6 \ m )[/tex]

Multiply.

[tex]\bold {c= 18.84 \ m}[/tex]

2. Area

The area is the size of the circle's surface. It is calculated using the following formula.

[tex]a= \pi r^2[/tex]

The radius is 3 meters are we are using 3.14 for pi. Substitute these values into the area formula.

[tex]a= (3.14)(3 \ m)^2[/tex]

Solve the exponent.

  • (3 m)² = (3 m)(3 m)= 9 m²

[tex]a= (3.14)(9 \ m)^2[/tex]

[tex]\bold {a=28.26 \ m^2}[/tex]

The circumference is 18.84 meters and the area is 28.26 square meters.

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