## Search found 18 matches

- Wed Dec 03, 2014 10:26 am
- Forum: News / Announcements
- Topic: Next Olympiad
- Replies:
**4** - Views:
**1699**

### Re: Next Olympiad

I'm gonna finish my A level on January 2015. Can I register for math Olympiad this year?And can those people who finished their A level on June 2014 sit this year? Thanks!

- Thu Jan 30, 2014 6:18 pm
- Forum: Geometry
- Topic: This is not cool actually!
- Replies:
**4** - Views:
**1097**

### Re: This is not cool actually!

Area of triangle= 0.5*ab*sin xNaheed wrote:How did you find the value of ABC= 2X2X √3/4 ?

As the triangle is equilateral all 3 angles are equal so =60

sin 60=$$\frac{\sqrt{3}}{2}$$

AC=2, so ABC=$$\frac{1}{2}$$*2*2*$$\frac{\sqrt{3}}{2}$$

- Thu Jan 23, 2014 10:55 pm
- Forum: Divisional Math Olympiad
- Topic: Chittagong 2013 higher secondary problem 9
- Replies:
**5** - Views:
**1465**

### Re: Chittagong 2013 higher secondary problem 9

Why don't you try to figure it out in the Bangla way? Just a tip, most of the times i used the bangla way during divisionals. its just a advice though, different strategy might work for you. Yah Bangla way might work but that will be very time consuming. Looking for other ways if someone have one. ..

- Thu Jan 23, 2014 9:57 pm
- Forum: Divisional Math Olympiad
- Topic: Chittagong 2013 higher secondary problem 9
- Replies:
**5** - Views:
**1465**

### Chittagong 2013 higher secondary problem 9

Batman lives in Brazil and Superman lives in Argentina. During Eid holidays, Batman will visit Argentina and Superman will visit Brazil. If they start from their respective countries at a time what is the probability that they will meet on their?

- Mon Sep 09, 2013 6:30 pm
- Forum: National Math Camp
- Topic: [OGC1] Online Geometry Camp: Result
- Replies:
**2** - Views:
**1782**

### Re: [OGC1] Online Geometry Camp: Result

Though i got a fail mark it was fun solving the problems! Hoping to see more online camps on other topics!

- Thu Aug 29, 2013 11:47 am
- Forum: National Math Camp
- Topic: [OGC1] Online Geometry Camp: Day 5 (EXAM!)
- Replies:
**29** - Views:
**5275**

### Re: [OGC1] Online Geometry Camp: Day 5 (EXAM!)

Can we use calculator for finding angles?

- Wed Aug 28, 2013 4:58 pm
- Forum: National Math Camp
- Topic: [OGC1] Online Geometry Camp: Day 4
- Replies:
**32** - Views:
**5881**

### Re: [OGC1] Online Geometry Camp: Day 4

Area of large circle is $4\pi$ Let the area of intersection between the small circles be x Area of one small circle is pi. So total area of four small circles= $$4\pi-4x$$. Let area of upper shadow part be y So $$4\pi-(4\pi-4x)=4y$$ $$4\pi-4\pi+4x=4y$$ This gives up x = y So the difference between t...

- Wed Aug 28, 2013 4:23 pm
- Forum: National Math Olympiad (BdMO)
- Topic: BdMO 2013 Junior Problem 10
- Replies:
**6** - Views:
**1219**

### Re: BdMO 2013 Junior Problem 10

@ Fatin: Are you sure this is the actual problem from the Olympiad? Because it has infinite answers. Take another triangle $A'B'C'$ where $\triangle A'B'C'$ and $\triangle ABC$ are similar but not congruent. Take a point $O'$ inside $\triangle A'B'C'$ and do the same things as before and you have y...

- Wed Aug 28, 2013 11:59 am
- Forum: National Math Olympiad (BdMO)
- Topic: BdMO 2013 Junior Problem 10
- Replies:
**6** - Views:
**1219**

- Tue Aug 27, 2013 10:10 am
- Forum: National Math Camp
- Topic: [OGC1] Online Geometry Camp: Day 2
- Replies:
**22** - Views:
**4199**

### Re: [OGC1] Online Geometry Camp: Day 2

@ Ira

How did you prove this-

How did you prove this-

**PQ রেখাংশ এবং AC কর্ণ পরস্পর O বিন্দুতে সমকোণে সমদিখণ্ডিত হয়।**?