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3 years ago

Can someone help me find DH

Mathematics

1 answer:

9966 [12]3 years ago

3 0

Check the picture below.

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The circle with center O has a minor arc BSA with a length of

tangare [24]

Answer:

D. $\frac{27\pi}{2}$ inches.

Step-by-step explanation:

We have been given that the circle with center O has a minor arc BSA with a length of $3\pi^{2}$ inches. The central angle is 40°.

To find the circumference of circle we will use formula:

$\frac{\text{Central angle}}{2\pi}=\frac{\text{Arc length}}{2\pi r}$ , where $2\pi$ = measure of 360 degrees in radians and $2\pi r$ = circumference of circle.

Let us convert measure of central angle into radians.

$40^{o}=\frac{40*\pi}{180} =\frac{2\pi}{9}$

Upon substituting our given value in the formula we will get,

$\frac{\frac{2\pi}{9}}{2\pi}=\frac{\frac{3\pi}{2}}{2\pi r}$

$\frac{2\pi}{18\pi}=\frac{3\pi}{4\pi r}$

$\frac{1}{9}=\frac{3}{4r}$

Cross multiplying we will get,

$4r=27$

$r=\frac{27}{4}$

Hence, the radius of our circle is 27/4 inches.

Since the circumference of circle is $2\pi r$ . Upon substituting $r=\frac{27}{4}$ we will get,

$2\pi r=2\pi* \frac{27}{4}=\frac{27\pi}{2}$

Therefore, circumference of our given circle will be $\frac{27\pi}{2}$ inches and option D is the correct choice.

6 0

3 years ago

How far is the sun from earth in scientific notation

Feliz [49]

Answer:

1.5 × 1011 m

Step-by-step explanation:

4 0

2 years ago

Giving 30 points to whoever helps me.Fasttttt and no wrong answers.

Dahasolnce [82]

The answer is y = -3x + 10.
The rest is not linear since the rest is not in the form of y = mx +b (a type equation for a line).

Have an awesome day! :)

7 0

3 years ago

The runners speed per mile

dezoksy [38]

Answer:10 minutes per mile

Step-by-step explanation:

8 0

3 years ago

Read 2 more answers

Find the measure for rus

timama [110]

Answer:

Step-by-step explanation:

39+23+28=90

180-90=90

3 0

3 years ago

Can someone help me find DH​

Can someone help me find DH