« previous next »
Pages: 1 2 [3]   Go Down

Author Topic: ON 08 P4 HELP MATH!!  (Read 5281 times)

Offline astarmathsandphysics

  • SF Overlord
  • *********
  • Posts: 11271
  • Reputation: 65534
  • Gender: Male
  • Free the exam papers!
Re: ON 08 P4 HELP MATH!!
« Reply #30 on: May 17, 2009, 10:55:24 pm »
Quite tricky. Leave it til last and do the best you can.
Logged

Offline theigstudent

  • SF Senior Citizen
  • *****
  • Posts: 658
  • Reputation: 277
  • Gender: Female
Re: ON 08 P4 HELP MATH!!
« Reply #31 on: May 17, 2009, 10:57:14 pm »
could some 1 explain Q7 a ii
how do u get y and z
same paper ???
Logged
<3 datz da way it izzzzzzzzzz <3

Offline astarmathsandphysics

  • SF Overlord
  • *********
  • Posts: 11271
  • Reputation: 65534
  • Gender: Male
  • Free the exam papers!
Re: ON 08 P4 HELP MATH!!
« Reply #32 on: May 17, 2009, 11:01:00 pm »
Rflection in line x=1? Is it Nov 08
Logged

Offline theigstudent

  • SF Senior Citizen
  • *****
  • Posts: 658
  • Reputation: 277
  • Gender: Female
Re: ON 08 P4 HELP MATH!!
« Reply #33 on: May 17, 2009, 11:02:31 pm »
Quote from: astarmathsandphysics on May 17, 2009, 11:01:00 pm
Rflection in line x=1? Is it Nov 08
no its june o8
Logged
<3 datz da way it izzzzzzzzzz <3

Offline astarmathsandphysics

  • SF Overlord
  • *********
  • Posts: 11271
  • Reputation: 65534
  • Gender: Male
  • Free the exam papers!
Re: ON 08 P4 HELP MATH!!
« Reply #34 on: May 17, 2009, 11:05:24 pm »
OAB is isoceles since )A and OB are radii. therefore y=(180-130)/2=25

ST and Ob are parelell so by Z rule x=40
ABC and ADB sum to 180 so z=180-(25+40)=115
Logged

Offline angell

  • SF Senior Citizen
  • *****
  • Posts: 866
  • Reputation: 159
  • Gender: Female
  • -cuz it aint ever good enuf to be true!
Re: ON 08 P4 HELP MATH!!
« Reply #35 on: May 17, 2009, 11:10:44 pm »
thank u so much for the prompt replies!!:D
Logged
oh churiyaan charha dey..
oh mehndiya kara dey..
oh jhanjara pawan dey...
On the dance floor oh mundiye...Nach Baliye!

--~*O yaara dhol bajaake.. O yaara jashan mana ke!!




-----------------------------------------

Offline theigstudent

  • SF Senior Citizen
  • *****
  • Posts: 658
  • Reputation: 277
  • Gender: Female
Re: ON 08 P4 HELP MATH!!
« Reply #36 on: May 17, 2009, 11:12:28 pm »
Quote from: astarmathsandphysics on May 17, 2009, 11:05:24 pm
OAB is isoceles since )A and OB are radii. therefore y=(180-130)/2=25

ST and Ob are parelell so by Z rule x=40
ABC and ADB sum to 180 so z=180-(25+40)=115

how to get y =25


n Thanks a lottttt for such instant replies

Logged
<3 datz da way it izzzzzzzzzz <3

Offline twilight

  • SF Senior Citizen
  • *****
  • Posts: 681
  • Reputation: 55
  • Gender: Female
  • wut u r in life depends on wut u choose..
Re: ON 08 P4 HELP MATH!!
« Reply #37 on: May 17, 2009, 11:18:28 pm »
like astar said .. AO and OB are equal bcoz they r radii .. so triangle AOB is isosceles ..
the sum of the angles is 180 .. so
angle OAB = angle OBA             and     OAB + OBA + 130 = 180    =>   OBA + OBA + 130 = 180

so 2y + 130 = 180            => y=25
Logged
Words and hearts should be handled with care
For words mis-spoken and hearts when broken are the hardest things to repair

Offline theigstudent

  • SF Senior Citizen
  • *****
  • Posts: 658
  • Reputation: 277
  • Gender: Female
Re: ON 08 P4 HELP MATH!!
« Reply #38 on: May 17, 2009, 11:23:38 pm »
oh ya  it so simple
Thanks a lot ppl
i needa go because in next six hours i have to reach ma school 4 exam
best of luck to every1
Logged
<3 datz da way it izzzzzzzzzz <3

Offline archangel

  • Newbie
  • *
  • Posts: 31
  • Reputation: 3
Re: ON 08 P4 HELP MATH!!
« Reply #39 on: May 18, 2009, 03:43:38 am »
ahh i need help, my exam is in 3 hours  :-\

do u guys know q7 part d)

why is the answer 57?
shouldnt it be 180-(78 x 2) = 24?

because if its isoceles than i can use that method right?
Logged

Offline astarmathsandphysics

  • SF Overlord
  • *********
  • Posts: 11271
  • Reputation: 65534
  • Gender: Male
  • Free the exam papers!
Re: ON 08 P4 HELP MATH!!
« Reply #40 on: May 18, 2009, 07:42:52 am »
q7 doesnt have a d)
Logged

Offline sanity_master

  • SF Farseer
  • *******
  • Posts: 3474
  • Reputation: 32003
  • Gender: Male
  • its all comin to an end :(
Re: ON 08 P4 HELP MATH!!
« Reply #41 on: May 18, 2009, 07:44:40 am »
LOL :D.........every one is nervous

my xam is in 3 hours and 17 minutes !  :'(

God be with me....


good luck everyone :)
Logged
Pages: 1 2 [3]   Go Up
« previous next »