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@ash2326 @aaronq @andriod09 @BulletWithButterflyWings @BostonBlue @e.mccormick @Erin001001 @stabar @iiamentertainment @jhonyy9 @goformit100 @hba @Haunted9 @lncognlto @rizwan_uet can someone help
i am not good at math so idk
ok thx anyways :)
I hate to just post that, but I cant draw on my tablet
tell me if you dont understand something
ok but thank you :)
EF = BC = a ÐF is a right angle. FD = CA = b triangle EF = BC = a angle F is a right angle. FD = CA = b In triangle DEF, By Pythagoras Theorem, a2 + b2 = c2 the given AB=c= a^2 + b^2 square root Theorefore AB = DE But by construction, BC = EF and CA = FD triangle ABC congruent to DEF (S.S.S.)
yep, as long as you understand it.
i do and thanks to you :D the link explains everything :)
@skullpatrol @phi @Flisk
can you show and explain ? :)
you are given angle B= < F
prove two angles are the same and a side?
yes, but what angles and side are we going to use ?
so thats given to
almost. DF = DB, but we need to show EF= CB
but notice EF= DF - DC and CB= DB-DE if you know DC= DE, and DF= DB then the difference will be the same
so you need to know why DC= DE I would use isosceles triangle idea... if base angles are equal, then the opposite sides are equal
now i have to put the proof in order
yes, lots of details but the big picture is angle - side -angle
given: angle B= < F
I hope you mean
we are doing the angles first. why is angle ACB = angle FEG ? you start by saying
angle sides angle?
I guess this does not make sense to you. notice that
well yah your rite it does not make sense but i get the first part up to vertical angles
really ok that looks simple !
you need the idea that if two different things equal the same thing then they equal each other. for example, if A = C and B=C then A=B this is common sense, so it should make a little sense. For this problem you say
that is the whole sequence to show
now tackle the side part. First step.
but isnt there at the end ASA?
the stuff to show
corresponding sides so..
If two angles of a triangle are congruent, the sides opposite them are congruent. this
yes. Do you follow what it says? we are given the base angles are =, so using this theorem (which has been proven by some smart person) we *know* the opposite sides (DC and DE) are equal
yahh i get it now :) thank you for that! ^_^
now we know DC +CB= DB
now we know DC +CB= DB sum of parts equal the whole and DE+EF= DF sum of parts equal the whole DB= DF given so we can say DC +CB= DF (replace DB with DF) and DC+CB = DE+EF things equal to the same thing are equal to each other we just proved DC= DE so we can say DC+CB= DC+EF (replace DE with DC) CB= EF (subtracting equal amounts keeps the equality)
that proves the sides the last part, is
wow that was a long answer and im sure your tired of all this typing im sorry and thank you so so so much for all you help!!
yes, lots of details.
@bayan are u still in geometry can u help me