0
First of all, you have to promise us that you're talking about a circle.
We're going to assume that, since you mentioned 'radius'.
The perimeter of a circle ... usually called its 'circumference' ... is (pi) x (the circle's diameter).
The circle's diameter is (2) x (its radius).
Diameter = 200 millimeters
Circumference = (pi) x (200) = 628.319 millimeters (rounded)
Still curious? Ask our experts.
Chat with our AI personalities
JudySimplicity is my specialty.
Chat with Judy
BlakeAs your older brother, I've been where you are—maybe not exactly, but close enough.
Chat with Blake
ReneChange my mind. I dare you.
Chat with ReneAdd your answer:
Earn +20 ptsQ: How do you find the perimeter if the radius is 100 millimeters?
Write your answer...
Submit
Still have questions?
Continue Learning about Math & Arithmetic
What is the area of a circle with a radius of 10 millimeters?
Area = pi R2 = pi (10)2 = 100 pi = 314.16 square millimeters (rounded)
Find the apothem of a regular polygon with an area of 625 m2 and a perimeter of 100 m?
Find the apothem of a regular polygon with an area of 625 m2 and a perimeter of 100 m.
Perimeter ratio 100 and find scale factor?
The linear scale factor is 100.
If A picture frame measures 20 inches by 30 inches find the perimeter and area of the frame?
Perimeter = 100 inches Area = 600 square inches
How do you convert 100 millimeters to meters?
convert 100 millimeters to meters
Trending Questions
Is it possible that the rate constant is not necessary to be integer number?
How do you write 0.275 as a percentage?
How many points are on the star of a standard Chinese checker gameboard?
What is the decimal of 12.80 percent?
How do you draw a triangle with 1 right angle?
What is the answer for the factor tree 72?
What is the fractional notation for 17.775?
35.25 percent of 50 is what number?
What is 4 divide by 841 equal?
What is the value 0 written as a fraction on a number line of thirds?
Greatest prime number that can be represented as both the sum of 2 prime numbers as well as difference of 2 prime numbers?
What is the estimated answer for 308?
What is a to the x power plus b to the y power equals c to the z power?
What two numbers have an absolute value of 12?
What do you do to your decimal to do that conversion?
What does it mean buy one get 50 percent?
What is the phonetic code?
How long is 550 minites in hours?
What does OL mean on a ohm meter?
How do you type does not equal symbol?
Copyright ©2025 Infospace Holdings LLC, A System1 Company. All Rights Reserved. The material on this site can not be reproduced, distributed, transmitted, cached or otherwise used, except with prior written permission of Answers.