1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
jenyasd209 [6]
3 years ago
15

The radius of a circle is 4 feet. What is the area of a sector bounded by a 72° arc?

Mathematics
1 answer:
densk [106]3 years ago
8 0
<span>An angle whose vertex is the centre of a circle and whose sides pass through a pair of points on the circle is called a </span>

central angle. The following symbol, pronounced “theta”, is

<span> used to represent a central angle: . </span>

Each central angle forms an arc length between the points

<span> that it passes through on the circle. The arc length of a circle can be found by first calculating what fraction of the circle is represented by the central angle. Then you find the circumference of the circle. Finally, you find the fraction of that circumference. For example, if a circle has a radius of 10.0 cm and a central angle of 60°, to calculate the arc length for that angle we must first determine what fraction of the circle is represented by the central angle 60°. Since there are 360° in a full circle, we can find the fraction of a circle by simplifying ; The sector represents of the circle. To find the arc length, we now need to find the circumference </span>

of the circle. Circumference of a circle is equal to 2 r.

C 5 2 r

5 2 10.0

<span> 62.8 cm The circumference of this circle is about 62.8 cm. To find the arc length, we need to find of 62.8 cm. 62.8 10.5 cm The arc length formed by this central angle is about 10.5 cm. </span><span>
</span>





You might be interested in
It takes 18 hours to fill a pool using 8 garden hoses. How long would it take to fill the same pool using 9 garden hoses?
levacccp [35]
Use rates, so 8 garden hoses over 18 hours
then find the how many hours one garden house can fill up by doing this = 18/8 you divide the 8 for both sides which is about 2.25/1
so then you times 9 which is about 20/9 hoses
your answer is 20
3 0
3 years ago
Read 2 more answers
You have 1 case of soap bars and there are 150 bars in a case. You use 300 bars of soap per day. how many cases do you news to o
nignag [31]
You would need 13 cases. If you would like an explanation of my answer, let me know.
7 0
3 years ago
2 different fraction equations that both equal 6
Oksi-84 [34.3K]
The 2 different fraction equations that both equal 6 are 12/2 and 36/6
4 0
3 years ago
Use the graphing calculator to graph the function f(x) = StartRoot x EndRoot. Which table of values contains points that lie on
Flura [38]

The Answer Should Be C -

6 0
3 years ago
Read 2 more answers
Last week, a florist sold 715 roses. Of the roses sold, 7 out of every 11 roses were red. How many red roses did she sell?​
const2013 [10]

Answer:

455 Red Roses were sold

Step-by-step explanation:

715 * (7/11) = 455

6 0
2 years ago
Other questions:
  • Solve x3 = 125 over 27
    12·2 answers
  • Which equation models this problem?
    10·2 answers
  • For the school performance, the band teacher asked the students to wear all red, all white, or all blue. Three times as many stu
    11·1 answer
  • This graph shows the distance that a robot walk. What’s is the robot’s speed ?
    13·2 answers
  • Multiplicative inverse of 21/49​
    15·1 answer
  • What is the factored form of -1/2(32x - 40) - (20x - 4)? ​
    9·2 answers
  • How to solve this one​
    8·1 answer
  • I need help with 2 questions about circumference. ITS ALMOST DUE 20 POINTS thank you
    9·1 answer
  • Please help i cant figure out the accurate answer i beg and i will mark brainlist
    13·1 answer
  • VXYZ is a rectangle with a length of 20cm and a width of 12 cm. The length of the rectangle is increased by 30%. The width of th
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!