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Mathematics 12 Online
OpenStudy (anonymous):

Please respond ASAP!!!! http://static.k12.com/calms_media/media/802500_803000/802600/2/18c90f9a256ee5ceea36afe7ea035ccdcfc04a25/14_2137_12_question.jpg An equilateral triangle is constructed with a compass and straightedge as shown. Which statement tells why line segment CD is congruent to line segment CE?

OpenStudy (anonymous):

A. The length of line segment CD is double the length of line segment DE. B. The length of line segment DE is double the length of line segment CE. C. The lengths of line segment CD and line segment CE are measured with the straightedge. D. Line segment CD and line segment CE are radii of the same circle.

OpenStudy (anonymous):

@Vocaloid you don't know me but can you help me?

Vocaloid (vocaloid):

well, we know that the center of the circle is C, right? and every point on the circle is the same distance from C both CE and CD start at C and end on the circle, so they must be the same length there's a special name for a line that starts at the center of a circle and ends on the circle, do you know what it's called?

OpenStudy (anonymous):

I'm not sure

OpenStudy (anonymous):

is it radius?

Vocaloid (vocaloid):

yes! good job so what do you think the answer is now?

OpenStudy (anonymous):

D???

Vocaloid (vocaloid):

great! good job

OpenStudy (anonymous):

thanks!

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