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3 years ago

Find The circumference of both circles to the nearest hundredth.

Mathematics

2 answers:

LuckyWell [14K]3 years ago

5 0

Answer:

Step-by-step explanation:

The formula for determining the circumference of a circle is expressed as

Circumference = 2 × π × r

Where

r represents the radius of the circle.

π is a constant whose value is 3.14

Looking at the diagram,

The radius of the green circle is 22m. Therefore

Circumference of green circle would be

2 × 3.14 × 22 = 138.16 m

The diameter of the blue circle is the radius of the green circle

Radius = diameter/2

The radius of the green circle would be

22/2 = 11m

Therefore

Circumference of blue circle would be

2 × 3.14 × 11 = 69.08 m

Margaret [11]3 years ago

3 0

Step-by-step explanation:

Radius of green circle (r) = 22 cm

$\therefore$ Circumference of green circle $=2\pi r \\ =2\times 3.14\times 22\\=6.28\times 22\\= 138.16 \: m$

Diameter of blue circle = 22 m

Radius of blue circle (r) = 11 cm

$\therefore$ Circumference of blue circle $=2\pi r \\ =2\times 3.14\times 11\\=6.28\times 11\\= 69.08 \: m$

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Rufina [12.5K]

Answer:

A, D , and E

Step-by-step explanation:

We have that:

$\overline{CD} = 12 \: units$

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is the image of CD after a dilation of scale factor n.

We use the relation between the image length and object length:

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Option A

If n=3/2, then

$\overline{C'D'} = \frac{3}{2} \times 12 = 3 \times 6 = 18 \: units$

This is true.

Option B

If n=4, then

$\overline{C'D'} = 4 \times 12 = 36 \: units$

This is false.

Option C

If n=8, then

$\overline{C'D'} = 8 \times 12 = 96 \: units$

This too is false.

Option D

If n=2, then

$\overline{C'D'} = 2 \times 12 = 24 \: units$

This is true

Option E

If n=3/4, then

$\overline{C'D'} = \frac{3}{4} \times 12$

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This is also true.

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3 years ago

Sum of two digit number is9.When we interchange the digits it is found that the resulting new number becomes twice the other num

ruslelena [56]

Answer:

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Step-by-step explanation:

Let the numbers be x and y

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x + y = 9 ....1

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10y+x = 20x + 2y

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y = 10x/8 ...2

Substitute equation 2 into 1;

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Step-by-step explanation:

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andriy [413]

The correct answer is B

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How many centimeters is a piece of paper that measures 12 in

lakkis [162]

<h2>Hello!</h2>

The answer is:

The piece of paper measures 30.48cm (centimeters)

We need to convert from inches to centimeters, we can do it using the following convertion factor:

$1in=2.54cm$

Now, calculating we have:

$12in*\frac{2.54}{1in}=30.48cm$

Hence, we have that the piece of papers measures 30.48cm (centimeters)

Have a nice day!

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3 years ago

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