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3 years ago

Find the circumference of the circle below. (Use 3.14 for Pi)

Mathematics

2 answers:

Jlenok [28]3 years ago

4 0

The answer is 75.36 m

Please see the attached picture for full solution

Hope it helps

Ronch [10]3 years ago

4 0

Answer:

$75.36m$

Step-by-step explanation:

$c = 2\pi \: r \\ = 2 \times 3.14 \times 12 \\ = 75.36m$

hope this helps

brainliest appreciated

good luck! have a nice day!

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8 0

2 years ago

The measure of a vertex angle of an isosceles triangle is 120° and the length of a leg is 8 cm. Find the length of a diameter of

Goryan [66]

ANSWER

The length of a Diameter is 3.714

EXPLANATION

The circumscribed triangle is shown in the attachment.

We use the cosine ratio to find the altitude of the isosceles triangle.

$\cos(60 \degree) = \frac{altitude}{hypotenuse}$

$\cos(60 \degree) = \frac{altitude}{8}$

Altitude =8cos(60°)

Altitude=4cm

Let the upper half of the altitude be y cm.

Then the radius of the circle is (y-4)cm

The upper radius meets the tangent at right angles.

From the smaller right triangle,

$\sin(60 \degree) = \frac{4 - y}{y}$

$y\sin(60 \degree) = 4 - y$

$y\sin(60 \degree) + y= 4$

$(\sin(60 \degree) + 1)y= 4$

$y= \frac{4}{\sin(60 \degree) + 1}$

$y = 16 - 8 \sqrt{3}$

y=1.857

The diameter is 2y

$d = 32 - 16 \sqrt{3}$

=2(1.875)

The length of a Diameter is 3.714

7 0

3 years ago

Read 2 more answers

Helppp!!!and thanks.

horsena [70]

Answer:

Step-by-step explanation:

12inches/foot , 12x132=1,584 inches

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3 years ago

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Andrej [43]

Answer:

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2 years ago