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**ganesh****Moderator**- Registered: 2005-06-28
- Posts: 20,121

1. The base BC of an equilateral ΔABC lies on y-axis. The coordinates of C are (0, -4). If the origin is the midpoint of the base BC, find the coordinates of the points A and B.

2. Find the value of

3. Using similar triangles, prove that the line drawn from the mid-point of one side of a triangle parallel to another side bisects the third side.

4. Prove that

5. Prove that

It is no good to try to stop knowledge from going forward. Ignorance is never better than knowledge - Enrico Fermi.

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

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**JaneFairfax****Member**- Registered: 2007-02-23
- Posts: 6,868

ganesh wrote:

2. Find the value of

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**Daniel123****Member**- Registered: 2007-05-23
- Posts: 663

4. Easy given the fact that

*Last edited by Daniel123 (2009-01-03 02:47:15)*

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**ganesh****Moderator**- Registered: 2005-06-28
- Posts: 20,121

To JaneFairfax and Daniel 123:-

Both of you are perfectly right, but these were meant for 14-15 year olds

It is no good to try to stop knowledge from going forward. Ignorance is never better than knowledge - Enrico Fermi.

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

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**JaneFairfax****Member**- Registered: 2007-02-23
- Posts: 6,868

I want to be 1415 years old again.

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**Daniel123****Member**- Registered: 2007-05-23
- Posts: 663

I wasn't sure what 'matriculation level' was

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**ganesh****Moderator**- Registered: 2005-06-28
- Posts: 20,121

Matriculation is the tenth year of schooling (in India), then the twelfth is Higher Secondary examination or Pre-University course (16-17 years of age).

It is no good to try to stop knowledge from going forward. Ignorance is never better than knowledge - Enrico Fermi.

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

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