- #1

- 655

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Sorry, it's upside down :(

How do i go about solving A. I know that for somthing to be congruent it needs to

SSS

RHS

AAS

SAS

I know that C = B because they lie on a circuference and a chord that binds them is A. Where do I go from now?

Thx

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- Thread starter thomas49th
- Start date

- #1

- 655

- 0

Sorry, it's upside down :(

How do i go about solving A. I know that for somthing to be congruent it needs to

SSS

RHS

AAS

SAS

I know that C = B because they lie on a circuference and a chord that binds them is A. Where do I go from now?

Thx

- #2

cristo

Staff Emeritus

Science Advisor

- 8,107

- 73

I know that for somthing to be congruent it needs to

SSS

RHS

AAS

SAS

What does this mean?

- #3

- 655

- 0

abreivations of triangle congruency

take a look:

http://www.bbc.co.uk/schools/gcsebitesize/maths/shapeh/congruencyandsimilarityrev2.shtml [Broken]

take a look:

http://www.bbc.co.uk/schools/gcsebitesize/maths/shapeh/congruencyandsimilarityrev2.shtml [Broken]

Last edited by a moderator:

- #4

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- #5

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The angle between a tangent and a chord is equal to the angle made by that chord in the alternate segment.

I cant see it. Do you know a good technique for spotting it?

Thx

- #6

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- #7

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statement 1: AP=AP Reason: common line (S)

statement 2: <ABC = <ACB reason: given

statement 3: <PBC = <PCB reason: tangent from the same point P

statement 4: therefore <ABP = <ACP reason: see statement 2&3 (A)

statement 5: <CPA = <BPA reason: tangent cords are from the same point P (A)

statement 6: triangle ABP = triangle ACP reason: AAS

but I'm not sure for statement 5, as the diagram doesn't indicate anything...

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