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densk [106]
2 years ago
7

The diameter of a tree trunk is 23 inches. What is the circumference?

Mathematics
2 answers:
Nadusha1986 [10]2 years ago
6 0

Answer:

72.26

Step-by-step explanation:

Circumference formula is C=2\pir

Radius is 1/2 the diameter so, 23/2 = 11.5

11.5 will be your radius.

Now, plug your radius into your formula: 2 x \pi x 11.5

and your answer will be approximately 72.26.

Vera_Pavlovna [14]2 years ago
4 0
The Image is uploaded.

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Put the given information in the appropriate spot in the equation. Simplify as required.
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Is this a right triangle?
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Step-by-step explanation:

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Use the distance formula to calculate the length of the leg CD
Karo-lina-s [1.5K]

To calculate the distance between two points on the coordinate system you have to use the following formula:

d=\sqrt[]{(x_1-x_2)^2+(y_1-y_2)^2}

Where

d represents the distance between both points.

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(x₂,y₂) are the coordinates of the second point.

To determine the length of CD, the first step is to determine the coordinates of both endpoints from the graph

C(2,-1)

D(-1,-2)

Replace the coordinates on the formula using C(2,-1) as (x₁,y₁) and D(-1,-2) as (x₂,y₂)

\begin{gathered} d_{CD}=\sqrt[]{(2-(-1))^2+((-1)-(-2))}^2 \\ d_{CD}=\sqrt[]{(2+1)^2+(-1+2)^2} \\ d_{CD}=\sqrt[]{3^2+1^2} \\ d_{CD}=\sqrt[]{9+1} \\ d_{CD}=\sqrt[]{10} \end{gathered}

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6 0
10 months ago
L || m
Alona [7]

Answer:

c. m∠1 + m∠6 = m∠4 + m∠6

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Given: The lines l and m are parallel lines.

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Here m∠1 and m∠2 are supplementary angles add upto 180 degrees.

m∠3 and  m∠4 are supplementary angles add upto 180 degrees.

Therefore, the statement is true.

b. m∠1 + m∠5 = m∠3 + m∠4

m∠1 + m∠5 = 180 same side of the adjacent angles.

m∠3 + m∠4 = 180, supplementary angles add upto 180 degrees.

Therefore, the statement is true.

Now let's check c.

m∠1 + m∠6 = m∠4 + m∠6

We can cancel out m∠6, we get

m∠1 = m∠4 which  is not true

Now let's check d.

m∠3 + m∠4 = m∠7 + m∠4

We can cancel out m∠4, we get

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It is true.

Therefore, answer is c. m∠1 + m∠6 = m∠4 + m∠6

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Answer:

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