menu
Qammunity
Login
Register
My account
Edit my Profile
Private messages
My favorites
Ask a Question
Questions
Unanswered
Tags
Categories
Ask a Question
If you double the length of the radius of a circle, what effect does it have on: the circumference of the circle, and the area of the circle? Thank you!
asked
Aug 11, 2018
36.4k
views
4
votes
If you double the length of the radius of a circle, what effect does it have on: the circumference of the circle, and the area of the circle?
Thank you!
Mathematics
middle-school
Janco
asked
by
Janco
7.8k
points
answer
comment
share this
share
0 Comments
Please
log in
or
register
to add a comment.
Please
log in
or
register
to answer this question.
2
Answers
3
votes
no effect bc it just gives you the diameter
Teimurjan
answered
Aug 12, 2018
by
Teimurjan
8.0k
points
ask related question
comment
share this
0 Comments
Please
log in
or
register
to add a comment.
3
votes
c=2pir
when r is replaced with 2r
cnew=2pi2r
cnew=2(2pir)
cnew=2(c)
it is doubling the original circumference
area
area=pir^2
r to 2r
areanwe=pi(2r)^2
areanew=pi(4r^2)
areanew=4pir^2
areanew=4area
it is 4 times of original area
the result is that the circumference is doubled and area is multiplied by 4
Chris Ruffalo
answered
Aug 16, 2018
by
Chris Ruffalo
8.2k
points
ask related question
comment
share this
0 Comments
Please
log in
or
register
to add a comment.
← Prev Question
Next Question →
No related questions found
Ask a Question
Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.
9.4m
questions
12.2m
answers
Other Questions
How do you can you solve this problem 37 + y = 87; y =
What is .725 as a fraction
How do you estimate of 4 5/8 X 1/3
A bathtub is being filled with water. After 3 minutes 4/5 of the tub is full. Assuming the rate is constant, how much longer will it take to fill the tub?
Write words to match the expression. 24- ( 6+3)
Twitter
WhatsApp
Facebook
Reddit
LinkedIn
Email
Link Copied!
Copy
Search Qammunity