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
LuckyWell [14K]
3 years ago
11

find the circumference of a circle that has an area of 452.16 square meters. (Use 3.1416 as the value of π.)

Mathematics
1 answer:
IceJOKER [234]3 years ago
3 0
(1) circumference of a circle = 2π.R
(2) area of a circle = π.R²

Area = 452.16 m² (given), so we can calculate the radius:
452.16 = π.R²
452.16/π = R²

143.92 = R²  → R =√143.92 ≈ 12 m
Having R = 12, now we can calculate the circumference :

circumference of a circle = 2π.R = 2.π.12 = 75.41 m

You might be interested in
Is a polyhedron a 2 dimensional figure bounded by polygons
Masteriza [31]
A polyhedron is a 3D solid with many faces
7 0
3 years ago
I need help do y’all know answer…..
Tems11 [23]

Answer:

x = 70

Step-by-step explanation:

14 + x = 84

x= 84 - 14

x = 70

here x is the games lost.

hope tgis helps !

4 0
2 years ago
Solve each proportion, round to one decimal place.<br> 4/9=x/20
guapka [62]

In order to solve a proportion you need to cross multiply, so you would do:

4x20 and 9xX and you would get...

9x=80

then divide by nine to get

x=8.8888888889

which is technically 8.9

3 0
3 years ago
Which Greek mathematician is known as the Father of Geometry? A. Pythagoras B. Thales C. Euclid D. Hippocrates
Brrunno [24]

Answer: C (Euclid is known as the Father of Geometry)



8 0
3 years ago
1/8 of a number is 10. What is the number?
OLEGan [10]
For this question you can say:
1/8x = 10 
so x is the answer and if u want to find the x you can multiply both sides of the equation by 8 so you will have:
x = 80 and that's the number 
if u want to find 1/7 of 21 you should just divide 21 by 7 so you will have 3 and for the last one is same also, so the answer is 5 :)))
i hope this is helpful
have a nice day 
6 0
3 years ago
Other questions:
  • What is the b-value?
    8·1 answer
  • Help me please<br>is this a linear function?
    11·1 answer
  • If you were given the equation f ( x ) = 3x⁵+6x, what behavior would the ends of the graph have?
    13·1 answer
  • How many triangles can be constructed with angles measuring 35º, 62º, and 83º?
    15·1 answer
  • What is 38.86 rounded to one decimal place
    11·2 answers
  • Find the area of the regular pentagon.
    8·1 answer
  • Find the solution of the system of equations<br> shown on the graph.
    8·1 answer
  • Does anybody have the answer to this
    7·1 answer
  • Find the area of the figure.<br> area<br> units2
    9·1 answer
  • Roster form {-2,-1,0,1,2,3} set builder form
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!