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**666 bro****Member**- From: Flatland
- Registered: 2019-04-26
- Posts: 334

CG#111: the coordinates of third vertex are ( 0, ±3√(3) ).

"An equation for me has no meaning, unless it expresses a thought of God"- Srinivasa ramanujan

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**ganesh****Administrator**- Registered: 2005-06-28
- Posts: 30,869

Hi,

Neat work!

CG # 112. Find which type of quadrilateral with vertices (0,-1), (6,7), (-2,3), and (8,3) is formed.

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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**666 bro****Member**- From: Flatland
- Registered: 2019-04-26
- Posts: 334

"An equation for me has no meaning, unless it expresses a thought of God"- Srinivasa ramanujan

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**ganesh****Administrator**- Registered: 2005-06-28
- Posts: 30,869

Neat work!

CG#113. Find the coordinates of the circumcentre of the triangle whose vertices are (8,6), (8,-2), and (2,-2).Also find its circumradius.

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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**666 bro****Member**- From: Flatland
- Registered: 2019-04-26
- Posts: 334

*Last edited by 666 bro (2020-07-11 01:08:57)*

"An equation for me has no meaning, unless it expresses a thought of God"- Srinivasa ramanujan

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**ganesh****Administrator**- Registered: 2005-06-28
- Posts: 30,869

Hi,

Well tried!

CG # 114. Write the coordinates of the center of a circle passing through the points (9,3), (7,-1), and (1,-1). Find the radius of the circle.

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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**666 bro****Member**- From: Flatland
- Registered: 2019-04-26
- Posts: 334

*Last edited by 666 bro (2020-07-17 15:27:14)*

"An equation for me has no meaning, unless it expresses a thought of God"- Srinivasa ramanujan

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**ganesh****Administrator**- Registered: 2005-06-28
- Posts: 30,869

Hi,

Good work!

CG # 115. (a) A (6,0) is a point on a circle with center (0,0). Find the radius of the circle.

(b) Show that

are the points on this circle.Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

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**666 bro****Member**- From: Flatland
- Registered: 2019-04-26
- Posts: 334

*Last edited by 666 bro (2020-07-24 14:47:08)*

"An equation for me has no meaning, unless it expresses a thought of God"- Srinivasa ramanujan

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**ganesh****Administrator**- Registered: 2005-06-28
- Posts: 30,869

Hi,

Neat work!

CG#116. Find the lengths AB, BC, AC in CG#115. Find

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

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**666 bro****Member**- From: Flatland
- Registered: 2019-04-26
- Posts: 334

*Last edited by 666 bro (2020-08-01 01:31:36)*

"An equation for me has no meaning, unless it expresses a thought of God"- Srinivasa ramanujan

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**ganesh****Administrator**- Registered: 2005-06-28
- Posts: 30,869

Hi,

Partially correct. Good work!

CG#117. Prove that the points A(1,-3), B(-3,0), and C(4,1) are the vertices of a right isosceles triangle.

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

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**666 bro****Member**- From: Flatland
- Registered: 2019-04-26
- Posts: 334

*Last edited by 666 bro (2020-08-07 21:24:14)*

"An equation for me has no meaning, unless it expresses a thought of God"- Srinivasa ramanujan

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**ganesh****Administrator**- Registered: 2005-06-28
- Posts: 30,869

Hi,

Neat work!

CG # 118. Show that A(6,4), B(5,-2), and C(7,-2) are the vertices of an isosceles triangle.

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

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