Q. circular geometry (1 Viewer)

[freaking_out]

yeah, this question (attached) is on circular geometry, note i made up the point T.

 

[Newbie]

hmm
im think its a similar triangle question

draw a circle around APCK, join CA
angle KPA = angle ACK = angle KBD

dunno if its right
dont have paper and pen handy

 

[ND]

PCAK is a cyclic quad
now let /_PCA=a
/_PCA = /_PKA = /_BKT = a
/_ACD = 90-a
/_ACD = /_ABD = 90-a
In /\ KBT:
/_BTK = 180 - /_KBT - /_BKT
= 180 - 90 + a - a
=90

Didn't bohter putting in reasons, i don't think you'll have any probs with them.

 

[deyveed]

Where did you get this question from?

 

[freaking_out]

this question was in my trial.

 

[Newbie]

what questions number? and how many marks?

 

[deyveed]

Originally posted by freaking_out
this question was in my trial.

You go to Homebush??

 

[freaking_out]

Originally posted by Newbie
what questions number? and how many marks?

3 marks, and i think question 7

You go to Homebush??

what?? where did u come up with this?

 

[deyveed]

I got the same question in my paper. It was in Question 7.

 

[freaking_out]

Originally posted by deyveed
I got the same question in my paper. It was in Question 7.

hmm.. what a coincidence.

 

[freaking_out]

Originally posted by ND
PCAK is a cyclic quad ...

hey, can u pls. explain to me why this is a cyclic quadrilateral?

 

[Affinity]

PCK + PAK = 90 + 90 = 180

 

[freaking_out]

Originally posted by Affinity
PCK + PAK = 90 + 90 = 180

oh yeah...shit.:mad1:

i've only had 3.5 hours of sleep.

 

[Affinity]

Was flipping through books today: Looks like your teachers have been ripping questions straight off textbooks

Arnold page 252 exercise 8.3 question 9

 

[freaking_out]

Originally posted by Affinity
Was flipping through books today: Looks like your teachers have been ripping questions straight off textbooks

Arnold page 252 exercise 8.3 question 9

even if i've seen the question before...i wouldn't been able to do it anyway...

 

[Richard Lee]

This question comes from a book. It is very popular.

 

[underthesun]

Those teacher's excuse will be that "they reward students who does their work". So don't bother complaining

 

[freaking_out]

Originally posted by underthesun
Those teacher's excuse will be that "they reward students who does their work". So don't bother complaining

true that, but what if u were using a different text book?

 

[underthesun]

claim that the whole class has that textbook they're ripping from

 

[freaking_out]

Originally posted by underthesun
claim that the whole class has that textbook they're ripping from

well what about claiming that the page this question was in was ripped off in my copy of the textbook...will i get extra marks..