HELP IGCSE MATH JUN. 09 ppr 2

[moon]

plz help math Jun. 09 ppr2  Q.16

[nid404]

Draw the angle bisector. That's the locus. I'll draw it and show so you have a better idea

[@d!_†oX!©]

just simply draw the angle bisectors of the two opposite angles in the centre and extend it on both side till the edge of the quadrilateral!!

[Ghost Of Highbury]

attached

[nid404]

Note:keep the radius constant...this is imp

[moon]

Sorry still didn't get it. ???Please help

[@d!_†oX!©]

dude see
there are four angles in total....two opposite each other...
so when u have to draw the locus of points equidistant from both these lines...u gotta make the angle bisector for all four angles which is same as making two angle bisectors of the opposite angles

[moon]

Sorry once again Why didn't we draw the perpendicular bisector as usual?

[Ghost Of Highbury]

perpendicular bisector can be drawn for a line.(180⁰)..for an angle..its angle bisector

[nid404]

Sorry still didn't get it. ???Please help

Do you know how to draw an angle bisector??

I'll put the steps down for u

Let the point of intersection of the two line be called M

First draw angle bisector for AM and BM. keep your compass and M and take a radius more than half of AM/BM and cut the two lines  and call them points X and Y. With the same radius draw an arc from X and cut the arc with same radius from Y. Join M with the intersection of the arcs. Repeat for other lines.

I'll post another diagram below

[nid404]

go thru this

[moon]

Thanks a lot for all of you.

[nid404]

Thanks a lot for all of you.

anytime and Good Luck

[@d!_†oX!©]

hey nid....
u posted the diagrams on te wrong thread!!!!
hahaha.....llollzzzz

[nid404]

yeah lol...big confusion