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Nairaland Forum / Nairaland / General / Education / I Need The Help Of The Mathematicians In The House Urgently (411 Views)
Where Are The Mathematicians? / Genius/mathematicians In The House, Solve This / Mathematicians In The House Please Help Me (2) (3) (4)
I Need The Help Of The Mathematicians In The House Urgently by Timijo(m): 9:52pm On Aug 16, 2013 |
Here is the question: In the diagram below, AOB is a diameter of the center O. OC//AD and <OCA=48 degree. Calculate <ABC. Below is the diagram. The angle inside is 48 degree.
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Re: I Need The Help Of The Mathematicians In The House Urgently by benbrains(m): 10:00pm On Aug 16, 2013 |
42...! |
Re: I Need The Help Of The Mathematicians In The House Urgently by seaman007: 10:13pm On Aug 16, 2013 |
Me think is 132 degree |
Re: I Need The Help Of The Mathematicians In The House Urgently by Timijo(m): 10:14pm On Aug 16, 2013 |
benbrains: 42...!How did you get 42? I need the solution not just the answer. |
Re: I Need The Help Of The Mathematicians In The House Urgently by Timijo(m): 10:17pm On Aug 16, 2013 |
seaman007: Me think is 132 degreeShow the working please cos that is what I need. |
Re: I Need The Help Of The Mathematicians In The House Urgently by benbrains(m): 10:27pm On Aug 16, 2013 |
Triangle ABC is in the semi-circle making <BCA=90 ( or angle at d circumference is half d angle d centre, i.e 180/2) hence <BCO +<OCA=90 <BCO + 48=90 .: <BCO =42. |OB|=|OC| (radii) <BCO=<ABC=42(base angle of isos. triangle) |
Re: I Need The Help Of The Mathematicians In The House Urgently by k2039: 10:33pm On Aug 16, 2013 |
I can't see any diagram |
Re: I Need The Help Of The Mathematicians In The House Urgently by benbrains(m): 10:37pm On Aug 16, 2013 |
k2039: I can't see any diagram prof K in d building |
Re: I Need The Help Of The Mathematicians In The House Urgently by Timijo(m): 10:45pm On Aug 16, 2013 |
k2039: I can't see any diagramThe diagram is there pls. |
Re: I Need The Help Of The Mathematicians In The House Urgently by benbrains(m): 10:51pm On Aug 16, 2013 |
@Timijo, you dont appear to be cool with the answer that I gave. |
Re: I Need The Help Of The Mathematicians In The House Urgently by k2039: 10:57pm On Aug 16, 2013 |
42 |
Re: I Need The Help Of The Mathematicians In The House Urgently by Timijo(m): 10:58pm On Aug 16, 2013 |
benbrains: Triangle ABC is in the semi-circle making <BCA=90 ( or angle at d circumference is half d angle d centre, i.e 180/2)Thanks, your solution has given me a hint. |
Re: I Need The Help Of The Mathematicians In The House Urgently by k2039: 11:00pm On Aug 16, 2013 |
Timijo: Thanks, your solution has given me a hint.Actually he is correct. |
Re: I Need The Help Of The Mathematicians In The House Urgently by Timijo(m): 11:04pm On Aug 16, 2013 |
k2039: Actually he is correct.Have you seen the diagram now? |
Re: I Need The Help Of The Mathematicians In The House Urgently by k2039: 11:12pm On Aug 16, 2013 |
Timijo: Have you seen the diagram now?Yes, but do you understand what he did?. |
Re: I Need The Help Of The Mathematicians In The House Urgently by Timijo(m): 11:20pm On Aug 16, 2013 |
k2039: Yes, but do you understand what he did?.Yes, I understood it perfectly. I proved it and it is correct. |
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