Math Is Fun Forum

alexxb

Guest

Circles: Chords, Radii, and Arcs

Hello!

I am not sure what to say seeing that I am unfamiliar with this site, but I would be extremely happy if you could help me  solve (with explanation) the following questions

image for question 9:
http://www.compuhigh.com/linkme/admin/testeditor/upload/pics/geometry/lesson15/imageQ28.JPG

9. If the diameter of circle M is 12, what would the length of MI be?

Image for the other questions:
http://www.compuhigh.com/linkme/admin/testeditor/upload/pics/geometry/lesson15/imageEBC.JPG

13. Working with the information from 12 from here to #16, what is the measure of arc AB?

14. What is the measure of arc BC?

19. If I created an imaginary point on arc AC named D, and drew line segments from points A and C to D, what would the measure of angle ADC be?

20. If line segment BC has a length of 24, and line segment AB has a length of 18, what is the radius of the circle?

Thank you!

thickhead

Member

Registered: 2016-04-16

Posts: 1,086

Re: Circles: Chords, Radii, and Arcs

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{1}Vasudhaiva Kutumakam.{The whole Universe is a family.}
(2)Yatra naaryasthu poojyanthe Ramanthe tatra Devataha
{Gods rejoice at those places where ladies are respected.}