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
timofeeve [1]
3 years ago
8

If the perimiter of a sector is 4 times its radius, then the radian measure of the ceenral angel of the sector is

Mathematics
1 answer:
BigorU [14]3 years ago
6 0
The perimeter of a sector includes two segments that are each equal to the radius, and the arc length. For your sector, the arc length is found as
   perimeter = 4r = r + r + arc-length
   2r = arc-length

Now we also know that arc-length is related to the central angle (in radians) by
   arc-length = r*central-angle
   2r = r*central-angle
   2 = central-angle

The measure of the central angle of the sector is 2 radians.
You might be interested in
Julie takes her kids to a playground that has the shape shown. A. While her kids are playing, Julie wants to get some exercise.
Leona [35]

Answer:

a.) Total distance Julie cover = 128 feet

b.) Total area , the playground cover = 256 ft²

Step-by-step explanation:

P. S : The exact question is -

As given,

Length of 1 side = 16 feet

As , we have

4 sides of same length

⇒ Total length of playground = 16 + 16 + 16 + 16 = 16(4) = 64 feet

a.)

As given Julie does 2 lap of the playground

⇒ Total distance Julie cover = 64 + 64 = 128 feet

b.)

As the playground has equal side, so it must be of square shape

And, we know

Area of square = (Length of one side)²

                        = ( 16 )² = 256 ft²

∴ we get

Total area , the playground cover = 256 ft²

5 0
2 years ago
I need help with this problem x²+4x﹣30=﹣3x
a_sh-v [17]

Answer:

x^2 + 4x -30 = -3x\\x^2 + 4x +3x -30 = 0\\x^2 + 7x -30 = 0\\x^2 +10x -3x -30 = 0\\x(x+10) -3(x+10)\\(x-3)(x+10) = 0\\x = 3, -10

7 0
2 years ago
Read 2 more answers
Are the triangles similar? Justify your answer​
cluponka [151]

Answer:

Yes

Step-by-step explanation:

If you divide all the sides of the larger triangle by 3, it's equivalent to the sides of the smaller triangle. Therefore, they are similar.

4 0
2 years ago
What number is needed to complete the pattern
FrozenT [24]
56 because that how u go up and down to get the nember that u want to get
4 0
3 years ago
What is the value of x?
vredina [299]
Add all the angle and =to 180 because all the angle in a triangle add up to 180 then put all numbers on one side and all x terms on the other side then you find x
8 0
3 years ago
Other questions:
  • What is the median value of the data set shown on the line plot?
    9·1 answer
  • the expression 5n + 2 can be used to find the total cost in dollars of bowling where n is the number of games bowled and the 2 i
    12·2 answers
  • Given: Circle A externally tangent to Circle B.
    6·2 answers
  • Given that the points (-1,6). (3,6), (3, 1), and (-1, 1) are vertices of a rectangle, how much shorter is the width than the len
    7·1 answer
  • Kite is flying 78 ft off the ground, and its string is pulled taut. The angle of elevation of the kite is 65º. Find the length o
    9·1 answer
  • If f(x)=x-5 what is the value of x when f (x)=15
    12·1 answer
  • Ella have stack of 50 pennies of ten
    8·2 answers
  • PLEASE HELP ME WITH THIS :<
    5·2 answers
  • sewing a border of ribbon onto her rectangular picnic blanket. The long side of the blanket is 70cm and the short side is 40cm.
    14·1 answer
  • What is the percent change form 4,000 to 800
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!