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Re: BDMO 2016: National Junior/2

[CDE]=225 sq. units
by Zahin Hasin Rudro
Thu Aug 03, 2017 11:13 pm
 
Forum: Junior Level
Topic: BDMO 2016: National Junior/2
Replies: 1
Views: 274

Re: 2017 Regional no.9 Dhaka

Oops I missed 81and 93!
by Zahin Hasin Rudro
Fri Jun 09, 2017 1:49 am
 
Forum: Divisional Math Olympiad
Topic: 2017 Regional no.9 Dhaka
Replies: 9
Views: 387

Re: 2017 Regional no.9 Dhaka

I got 16 ,how 17 ??
by Zahin Hasin Rudro
Thu Jun 08, 2017 1:00 am
 
Forum: Divisional Math Olympiad
Topic: 2017 Regional no.9 Dhaka
Replies: 9
Views: 387

Re: BdMO '16 regional junior/9

Hint:construct an isosceles triangle by joining the center of any small circle with the two big circles, then form an equation,solve it.......
by Zahin Hasin Rudro
Wed Jan 04, 2017 6:15 pm
 
Forum: Junior Level
Topic: BdMO '16 regional junior/9
Replies: 3
Views: 303

Re: geometry that will make you mad!

thank you very much.
by Zahin Hasin Rudro
Mon Dec 07, 2015 12:39 pm
 
Forum: Junior Level
Topic: geometry that will make you mad!
Replies: 2
Views: 754

Re: Acute angled circular

its C(7,3)=35
by Zahin Hasin Rudro
Thu Sep 03, 2015 5:58 pm
 
Forum: Junior Level
Topic: Acute angled circular
Replies: 13
Views: 1847

2014 chittagong BDMO question 10

can anyone please help me with this question?? ABC is a right angle triangle where angle A is right angle. The perpendicular drawn from A on BC intersects BC at point D. A point P is chosen on the circle drawn through the vertices of ΔADC such that CP perpendicular to BC and AP = AD. If a square is ...
by Zahin Hasin Rudro
Sat Jul 18, 2015 9:43 pm
 
Forum: Junior Level
Topic: 2014 chittagong BDMO question 10
Replies: 2
Views: 692

geometry that will make you mad!

ABC is a right angle triangle where angle A is right angle. The perpendicular drawn from A on BC intersects BC at point D. A point P is chosen on the circle drawn through the vertices of ΔADC such that CP perpendicular to BC and AP = AD. If a square is drawn on the side BP, the area is 340 square un...
by Zahin Hasin Rudro
Fri Jul 17, 2015 3:12 pm
 
Forum: Junior Level
Topic: geometry that will make you mad!
Replies: 2
Views: 754

Re: Acute angled circular

its 7c3 =35.by the formula of combination.
by Zahin Hasin Rudro
Thu Jul 16, 2015 1:22 pm
 
Forum: Junior Level
Topic: Acute angled circular
Replies: 13
Views: 1847

triangle inscribed in a square

AVIK is a square. The point E is taken on VK in such a way that 3VE=EK. F is the midpoint of AK.
What is the value of FEI?


source:2014 national junior
by Zahin Hasin Rudro
Thu Jul 16, 2015 1:15 pm
 
Forum: Junior Level
Topic: triangle inscribed in a square
Replies: 2
Views: 530
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