If the circumference of the circle below is 72, what is the length of AB (the mirror arc)?

Crizly asked Jun 6, 2023

82,901 views

26 votes

Crizly asked Jun 6, 2023

2.9k points

Your comment on this question:

Email me at this address if a comment is added after mine:Email me if a comment is added after mine

Privacy: Your email address will only be used for sending these notifications.

Email me at this address if my answer is selected or commented on:Email me if my answer is selected or commented on

Privacy: Your email address will only be used for sending these notifications.

7 votes

Remember that the formula for the lenght of an arc is:

$L=2\pi r((\theta)/(360))$

Notice that the expression

$2\pi r$

is the circunference of the circle

Using this formula and the data given,

$L=72\cdot((60)/(360))\rightarrow L=12$

Therefore, the lenght of the arc is 12

Philip Atz answered Jun 11, 2023

2.9k points

Email me at this address if a comment is added after mine:Email me if a comment is added after mine

Privacy: Your email address will only be used for sending these notifications.

Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

1.6m questions

2.0m answers