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Mathematics 20 Online
OpenStudy (jahnavi):

If a circle is divided into three equal arcs then each arc is a major arc. True or False?

hartnn (hartnn):

u know what is a major arc ?

OpenStudy (jahnavi):

yes

hartnn (hartnn):

so what u think it is ? true or false ?

OpenStudy (jahnavi):

false

hartnn (hartnn):

false is correct :)

OpenStudy (jahnavi):

why

hartnn (hartnn):

major arc must be >180 degrees. here each arc = 360/3 =12 degrees.

hartnn (hartnn):

*120 degrees.

OpenStudy (jahnavi):

I have an another explanation.

hartnn (hartnn):

like ?

OpenStudy (jahnavi):

If you consider one arc of the circle ,then the remaining 2 arcs make a major arc. so, the one which we have considered becomes a minor arc.

hartnn (hartnn):

yeah, u can say so...good.

OpenStudy (jahnavi):

thankyou!

hartnn (hartnn):

welcome ^_^

hartnn (hartnn):

any more Questions ? or doubts ?

OpenStudy (jahnavi):

yes i have one more question

hartnn (hartnn):

u can ask :)

OpenStudy (jahnavi):

A sector is the region between the chord and its corresponding arc. True or false?

hartnn (hartnn):

what u think, true or false ?

OpenStudy (jahnavi):

false

hartnn (hartnn):

you are correct again.

OpenStudy (jahnavi):

why

hartnn (hartnn):

The part of the circular region bounded by two radii and the corresponding arc is called a sector

hartnn (hartnn):

he region between the chord and its corresponding arc is segment.

hartnn (hartnn):

http://math66.com/circles/

OpenStudy (jahnavi):

thankyou once again

hartnn (hartnn):

welcome once again ^_^

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