|
|
Author | Message |
---|
Anu..i luv icse...:) Active member
| Subject: construction Fri Feb 13, 2009 8:42 am | |
| Q. using ruler n compasses only, construct an isosceles triangle ABC having base=4cm, vertical angle=45 and median through vertex equal to 2.8 cm.
now, what is vertical angle?????
plz give steps. i am doubtful about my own answer.
Last edited by Anu..i luv icse...:) on Sat Feb 14, 2009 8:37 am; edited 1 time in total |
|
| |
gm8496 Active member
| Subject: Re: construction Fri Feb 13, 2009 1:42 pm | |
| do you mean vertical angle??? |
|
| |
Midhun Sarath Active member
| Subject: Re: construction Fri Feb 13, 2009 1:49 pm | |
| she didn't read ques properly.. in ques.. it is vertical and she said vertex ! |
|
| |
Namit Active member
| Subject: Re: construction Fri Feb 13, 2009 1:52 pm | |
| vertical angle dear.. in an isosceles triangle is the unequal angle.. the two equal ones r called base angles.. |
|
| |
Midhun Sarath Active member
| Subject: Re: construction Fri Feb 13, 2009 1:57 pm | |
| yep |
|
| |
Anu..i luv icse...:) Active member
| Subject: Re: construction Fri Feb 13, 2009 1:59 pm | |
| oh...yeah i meant vertical angle now, give me steps of construction!! |
|
| |
Anu..i luv icse...:) Active member
| Subject: Re: construction Fri Feb 13, 2009 9:54 pm | |
| arrey....no one is answering?????? anyone...common!!! answer.... Welcome welcome!! |
|
| |
Anu..i luv icse...:) Active member
| Subject: Re: construction Fri Feb 13, 2009 11:09 pm | |
| guys, plzz...common....answer my question.... |
|
| |
Apurva Active member
| Subject: Re: construction Sat Feb 14, 2009 12:18 am | |
| hey i am still confused you have given the vertical angle n the description you hav given for it is the same as vertex angle and then you are asking what is vertex angle quite confusing |
|
| |
siya Active member
| Subject: Re: construction Sat Feb 14, 2009 10:04 am | |
| i find dis question quite weird coz i dont think dere is any need of giving median in it.ok steps of construction r: 1-vertical angle given so find out d 2 base angles. 180-45=145 =72.5 2 2 2-draw base =4cm. 3-now on both sides of line draw angles of 72.5 3-d point at wich de intersect is d third vertex of d triangle. |
|
| |
Anu..i luv icse...:) Active member
| Subject: Re: construction Sat Feb 14, 2009 8:00 pm | |
| yeah...right siya....my ans was the same....even i was thinking y they gave median....so i thought of asking this here.....!!!! |
|
| |
siya Active member
| Subject: Re: construction Sat Feb 14, 2009 8:43 pm | |
| ur most welcome dear!!!! |
|
| |
QUEST Active member
| Subject: Re: construction Sun Feb 22, 2009 6:41 pm | |
| THE DATA IS NOT REDUNDANT, hw will you construct 72.5 using compass and ruler only. |
|
| |
Anu..i luv icse...:) Active member
| Subject: Re: construction Sun Feb 22, 2009 9:22 pm | |
| thts a good question....i dont know...then tell me another solution to the question..or the question itself should be wrong |
|
| |
QUEST Active member
| Subject: Re: construction Mon Feb 23, 2009 6:39 pm | |
| take base as given, 4cm. draw perpendicular bisector of base( in iso triangle median and altitude are same).mark 2.8 cm on this median, you get ur vetex. at this point construct 22.5 degrees on both sides i.e. median should be bisecting 45. for condtructing 22.5--- construct 45 on both sides and bisect. hope i m clear all th best |
|
| |
Anu..i luv icse...:) Active member
| Subject: Re: construction Mon Feb 23, 2009 7:41 pm | |
| yes...thnks i didnt know tht alt. n median r d same |
|
| |
QUEST Active member
| Subject: Re: construction Mon Feb 23, 2009 8:04 pm | |
| ONLY FO ISOSCELES AND equilateral triangles |
|
| |
Sponsored content
| Subject: Re: construction | |
|
|
|
| |
|