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Author Topic: Need help in a maths question :)  (Read 1254 times)

Offline blast_23

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Need help in a maths question :)
« on: April 18, 2011, 10:03:51 pm »
Hey guys ! i came across a circle theorm question and i have no idea how to figure it out , help would be appreciated

Maths 0580 s10_qp21 question 17 (c)

Thank you :)
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Offline NotAbod

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Re: Need help in a maths question :)
« Reply #1 on: April 18, 2011, 10:30:26 pm »
give me 10 mins max
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Offline NotAbod

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Re: Need help in a maths question :)
« Reply #2 on: April 18, 2011, 10:39:17 pm »
17-a-   BOC = 90-38 = 52 (perpendicular bisector of AB, BOD= 90 )

b- CBO = (180-2) / 2 = 64 ( OB = OC = Radius of circle)

c- angle E = 19, why? COD = half CED
therefore EDO = 180 - ( 90+ 19) = 71

:)
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Offline blast_23

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Re: Need help in a maths question :)
« Reply #3 on: April 18, 2011, 11:05:10 pm »
Thx alot abod :D
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Offline NotAbod

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Re: Need help in a maths question :)
« Reply #4 on: April 18, 2011, 11:09:46 pm »
Your most welcome :)
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