Search found 7 matches
- Sun Jun 28, 2020 10:33 pm
- Forum: National Math Olympiad (BdMO)
- Topic: BdMO-2019/4 secondary
- Replies: 1
- Views: 3671
BdMO-2019/4 secondary
In this figure ABCD is a trapezium where $AB||CD$. $P, Q,R, S$ are the midpoint of $AB,BD,DC,CA$ respectively. $AC$ and $BD$ intersect at point $O$. Area of $\triangle AOB = 2019$ and area of $\triangle COD = 2020$ .What is the area of quadrilateral $PQRS$?
- Sat Dec 22, 2018 8:55 pm
- Forum: Geometry
- Topic: Centroid Division theorem
- Replies: 0
- Views: 9340
Centroid Division theorem
Hey! Can anyone please tell me How to prove Centroid Division theorem by using negative homothety?
Thanks in advance
Thanks in advance
- Wed Jan 03, 2018 9:04 pm
- Forum: Number Theory
- Topic: Divisibility
- Replies: 1
- Views: 5091
Divisibility
Prove that any integer of the form ( 4k + 3 ) has a prime factor of the same form .
- Fri Dec 15, 2017 9:36 pm
- Forum: Number Theory
- Topic: Divisibility
- Replies: 1
- Views: 4879
Divisibility
Find n such that 2n31024 − 1.
- Thu Dec 14, 2017 7:09 pm
- Forum: Number Theory
- Topic: GCD
- Replies: 1
- Views: 4888
GCD
gcd(a,0) = ?
- Thu Dec 14, 2017 7:05 pm
- Forum: Divisional Math Olympiad
- Topic: BDMO REGIONAL 2017
- Replies: 3
- Views: 7840
BDMO REGIONAL 2017
In a diagram, two surfaces are partially superimposed in each other. The perimeter of one surface is 201 units and the area is 201 square units. The perimeter of the other surface is 710 units and the area is 710 square units. What is the difference of the area of the two surfaces that is not black ...
- Thu Dec 14, 2017 6:31 pm
- Forum: Number Theory
- Topic: NUMBER THEORY
- Replies: 1
- Views: 5267
NUMBER THEORY
please , provr the theorem