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Nostrana [21]
3 years ago
7

What is the arc length if θ = 2 pi over 7 and the radius is 3 cm?

Mathematics
2 answers:
denis-greek [22]3 years ago
5 0
Arc length = <span>θ/2pi * 2pi * r = </span><span>θ * r = 2pi/7 * 3 = 6pi/7 = 2.69 cm</span>
laiz [17]3 years ago
5 0

Answer:

Length of the arc will be 2.69 cm.

Step-by-step explanation:

We have to calculate the length of an arc if θ = \frac{2\pi }{7} and radius of arc is 3 cm.

As we know length of an arc = r × θ

By putting the values of angle θ and radius of arc r in the formula

m (arc) =  \frac{2\pi }{7} × 3

           =  \frac{6\pi }{7}

           =  \frac{6(3.14)}{7}

           = 2.69 cm

Therefore, length of the arc will be 2.69 cm.

You might be interested in
Which values are solutions 4x greater than or equal to 35
Mamont248 [21]

Answer:

\frac{5}{1/2}, 12, \frac{8}{3/4}, 10

Step-by-step explanation:

4x\geq 35

x \geq \frac{35}{4}

x \geq 8 \frac{3}{4}

so

\frac{5}{1/2} = 10

12

\frac{8}{3/4} = 10.66

and 10

Because saying 5 over 1/2 is saying 5 divided by 1/2 which is the same as saying 5 * 2

8 over 3/4 is 8 divided by 3/4 which is 8 * 1.33.

A fraction is division. If you mean 5 and 1/2 as well as 8 and 3/4 then remove 5 and 1/2 from the answer.

6 0
3 years ago
The complement of an angle is 25 less than 3 times the angles itself. Find the measure of each
Semenov [28]

Answer: 28.75° and 61.25°

Step-by-step explanation:

A complementary angle equals 90°.

Let the measure of the angle be a

Therefore, its complement will be:

= 90-a.

The complement of an angle is 25 less than 3 times the angles itself can be written as:

90-a = 3a - 25

90 + 25 = 3a + a

115 = 4a

a = 115/4

a= 28.75

Since the angle is 28.75°, the complement will be:

= 90° - 28.75°

= 61.25°

The angles are 28.75° and 61.25°

6 0
3 years ago
the population of center city is modeled by exponential function f, where x is the number of years after the year of 2015. the g
lora16 [44]

Answer:

the Answer is B) y >= to 250,000

5 0
2 years ago
The object shown is made of glass. What is it called?
insens350 [35]
The answer is : Prism

hope this helps !
7 0
3 years ago
Read 2 more answers
My question is: What is 13 times 2, divided by 7, subtracted by 10, finally added by 82!
kogti [31]

75.7 rounded to 76

Explaination:

13 * 2 = 26

26 / 7 = 3.71

3.71 - 10 = -6.28

-6.28 + 82 = 75.7

Rounded 75.7 = 76

7 0
3 years ago
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