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maria [59]
3 years ago
13

If the circumference of a circle measures 3 4 π cm, what is the area of the circle in terms of π? A) 9 8 π cm2 B) 3 8 π cm2 C)

3 64 π cm2 Eliminate D) 9 64 π cm2
Mathematics
2 answers:
max2010maxim [7]3 years ago
8 0
It should be 289pi cm2, but I don't see that answer

Brilliant_brown [7]3 years ago
5 0

I get area = 289 π cm²

the circumference and area formulae for a circle are

C = 2πr and A = πr² ( where r is the radius )

2πr = 34π ( divide both sides by 2π )

r = 17 cm

and A = π × 17² = 289π cm²


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Find the circumference and the area of a circle with radius 3 m.
Effectus [21]

Answer:

\boxed {c= 18.84 \ m}

\boxed {a=28.26 \ m^2}

Step-by-step explanation:

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

<h3>1. Circumference </h3>

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

c= \pi d

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
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  • d= 6 m

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

c= (3.14)(6 \ m )

Multiply.

\bold {c= 18.84 \ m}

<h3>2. Area </h3>

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

a= \pi r^2

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

a= (3.14)(3 \ m)^2

Solve the exponent.

  • (3 m)² = (3 m)(3 m)= 9 m²

a= (3.14)(9 \ m)^2

\bold {a=28.26 \ m^2}

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

6 0
3 years ago
What is the answer to 5 × 3/4=
Firlakuza [10]
The answer is 3.75 hope this helped
8 0
4 years ago
Read 2 more answers
0.2(x+50)-6=0.4(3x+20)
podryga [215]
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3 0
3 years ago
It costs 6.95 to ship a 4-pound package and $9.35 to ship a 7-pound package. The shipping charge can be modeled by a linear func
Valentin [98]
Don’t know go on google
5 0
3 years ago
5/2=? ?/? ill give brainliest
adoni [48]

Answer:

Okay so you jsut gotta divide

5/2 is basically saying 5 divided by 2, the bar basically means divide by.

Now 5/2 is 2.5

2.5 into a mixes is 2 1/2

7 0
3 years ago
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