Online Course Discussion Forum

MC2A Help 1

 
 
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MC2A Help 1
TangDavid 发表于 2018年11月4日 Sunday 07:51
 

I think there is not enough information in 15) and 16).

 
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Re: MC2A Help 1
ReynosoDavid 发表于 2018年11月6日 Tuesday 10:10
 

On 15, you know the quadrilateral is a trapezoid and also you know that it is cyclic. What does this tell you about the angles of the trapezoid?

On 16, try using Power of a Point. Note the point R must be outside of the circle for the problem to make sense.

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Thanks
TangDavid 发表于 2018年11月5日 Monday 17:00
 

Thanks, but I needed 15) and not 17).

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Re: Thanks
ReynosoDavid 发表于 2018年11月6日 Tuesday 10:11
 
Hey David. The hints I put in there had the wrong numbers, but were for the problems you were asking (it said 16 instead of 15 and 17 instead of 16, but it is fixed now).