All categories

3 years ago

A circle has an arc of length 24π that is intercepted by a central angle of 80°. What is the radius of the circle?

1 answer:

8 0

I got radius= 54
arc/2pi r = degrees/360
then fill in what you know: 24pi/2pi r = 80/360
Now cross multiply and you get: 8640pi = 160pi r
Now divide both sides by 160pi and you get: 54= r

You might be interested in

Find the area of a circle with a circumference of 34.6 feet

andrew11 [14]

Answer:

Area of the circle = $95.33feet^2$

Step-by-step explanation:

Circumference of the circle=34.6 feet

Circumference of a circle= $2\pi r$

$34.6=2\pi r\\\\$

As, $\pi =\frac{22}{7}=3.14$

$34.6=2*3.14*r\\\\34.6=6.28*r\\\\34.6/6.28=r\\\\r=5.51feet$

Area of the circle= $\pi r^2$

$=3.14*5.51*5.51\\\\=3.14*30.36\\\\=95.33feet^2$

The area of the circle is $95.33feet^2$

4 0

3 years ago

Which expression is represented by the model

kramer

Answer:

hope this helps

have a good day :)

Step-by-step explanation:

6 0

3 years ago

Read 2 more answers

PLEASE PLEASE PLEASE HELP ME WITH THESE! Or I WILL FAIL!! PLEASE

Serga [27]

First ones 40 and I’m not sure bout the second one but through process of elimination either always or never cause nothing in math is uncertain or non existent

6 0

3 years ago

100 possible points!!!!!! and BRAINLIEST to correct answer of this question:

Akimi4 [234]

This should be a rotation!

7 0

3 years ago

PLEASE I NEED THIS NOWWWWWWWWWWWWW

soldier1979 [14.2K]

Answer:
It is A, 65
Hope this helps!

7 0

2 years ago

Read 2 more answers