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
skelet666 [1.2K]
3 years ago
13

Find the circumference of each circle, use 3.14 for . Include units and round to the nearest tenth. Show work

Mathematics
1 answer:
klio [65]3 years ago
8 0

Answer:

Answer:-

a) <em>The circumference of the circle  C = 21.98 m</em>

<em>b) The circumference of the circle  C = 37.68 ft</em>

<em>c)  The circumference of the circle  C = 40.82 km</em>

<em>d) The radius of the circle = r = 11 c.m</em>

<em>     The Diameter of the circle 'd' = 2(r) = 2(11) =22 c.m</em>

<em>e) The circumference of the circle = 21.98 inches</em>

<em>   </em><u>Step-by-step explanation</u>:

a)  In First diagram

Given radius of the circle 'r' = 7.1 m

  <em> The circumference of the circle  C = 2πr</em>

                                                            C = 2 (3.14) (7.1)

                                                            C = 21.98 m

<em> The circumference of the circle  C = 21.98 m</em>

b) In second diagram

Given diameter of the circle 'd' = 12 ft

   The circumference of the circle  C = 2πr

                                                            C = π(2 r)

                                       Diameter = 2 X radius

                                               d = 2 r

 The circumference of the circle  C = πd

                                                          C = 3.14 ×12

<em> The circumference of the circle  C = 37.68 ft</em>

<em>c) </em>

Given diameter of the circle 'd' = 13 km

   The circumference of the circle  C = 2πr

                                                            C = π(2 r)

                                       Diameter = 2 X radius

                                               d = 2 r

 The circumference of the circle  C = πd

                                                          C = 3.14 ×13

 <em>The circumference of the circle  C = 40.82 km</em>

   

7) The circumference of the circle  C = 2πr

    Given The circumference of a circle is 34.54 cm

          Now       2πr = 34.54

                   2(3.14) r = 34.54

                           r = \frac{34.54}{3.14} = 11

  <em>  The radius of the circle = r = 11 c.m</em>

<em>     The Diameter of the circle 'd' = 2(r) = 2(11) =22 c.m</em>

8) Given radius of the circle 'r' = 3.5 inches

   The circumference of the circle  C = 2πr

                                                            C = 2 (3.14) (3.5)

                                                            C = 21.98

  <em>The circumference of the circle = 21.98 inches</em>

 

You might be interested in
Each day that a library book is kept past its due date, a $0.30 fee is charged at midnight. Which ordered pair is a viable solut
Tom [10]

Answer:

x + $0.30 = y

Step-by-step explanation:

hope this helps!

4 0
3 years ago
Read 2 more answers
I don't get it doesn't make sense?​
Vlad [161]

answer:

26 feet

step by step explanation:

40 - 5.2 = 35.2 - 8 = 27 - 1 = 26

5 0
3 years ago
Evaluate the expression 0.4 cubed
nordsb [41]

Answer:

the answer to 0.4 cubed is 0.064

3 0
3 years ago
Read 2 more answers
To rationalize the denominator of 2√10/3√11 , you should multiply the expression by which fraction?
kifflom [539]
\text {You need to multiply by }  \dfrac{ \sqrt{11} }{ \sqrt{11} }

\dfrac{2 \sqrt{10} }{3 \sqrt{11} } \times  \dfrac{ \sqrt{11} }{ \sqrt{11} }  = \dfrac{2 \sqrt{10} \sqrt{11}  }{3 \times 11}   =  \dfrac{ 2\sqrt{110} }{33}
5 0
3 years ago
Need help show work???????
shusha [124]

Answer:

A: 11.9

B: -9.4

Step-by-step explanation:

A: -17.4 + x = -5.6

Add 17.4 to both sides, this cancels 17.4 on the left and makes x= 11.9.

B: -5.6 + x = -15

Add 5.6 to both sides, this cancels 5.6 on the left side and makes x= -9.4.

3 0
3 years ago
Read 2 more answers
Other questions:
  • A student collects 12 ladybugs for a science project. This is 9 fewer than the number of ladybugs the students collected yesterd
    7·2 answers
  • If the rectangle below are similar what Is the length of X
    12·2 answers
  • Which is the best estimate of each percent? 50 of 600
    6·1 answer
  • 54 - 4a^2 3b^3 when a = -2 and b = 4?
    12·1 answer
  • Graph the inequality y&gt;-5x+3
    14·1 answer
  • Which table represents the graph of a logarithmic function in the form y=log3x when b&gt;1?
    7·2 answers
  • A teacher would like to estimate the mean number of steps students take during the school day. To do so, she selects a random sa
    12·1 answer
  • Convert 80 gallons into liters. Round your answer to the nearest whole number.
    13·1 answer
  • Find the surface area of the cone to the nearest square unit. Use π = 3.14.
    11·2 answers
  • The local public pool is a rectangle with two semicircles.
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!