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What is your question?
4 is prove
can you help me @GabeBae
4 is ASA
first we were given angle congruency and a side
and 5 is cpctc
then 3 they proved another angle congruency so in 4 we have angle side angle gives two congruent triangles
well for 5 you have congruent triangle therefore all respective sides are congruent
so am i right then ?
what is cpctc?
sorry not familiar with this abreviation
Corresponding parts of congruent triangles are congruent
does that help?
yes good same as i said
okay for the next one 2 we know that all right angles are congruent 90 degrees
3 is given
ok so is that what i put ?
4 DSH congruent to DST
angles of course
ok so 5 is ?
5 is SAS
ok yeah that makes sense...
no sorry AAS
so i have two more i need help with
Do you agree that we have isos triangle
,not all of the sums of the angles are equal
good! do you agree that angles at the base are congruent
then do you see that x+x+38=180
so is that my answer?
yes for sure! we started with recognizing two identical sides that told us we have isos triangle then we employed the fact that isos triangles have two congruent angles at the base then we used the fact of angles of a triangle 180 then it is reasonable what our solution is x=71
i know we have right angles
yes there are! but i'm going to not look at as right triangles (drawing can deceive us ) first let's look at the big triangle
we are given an isos triangle again
sorry website crash we are also given angle C=47 so B=47 then 47+47+2y=180
now focus on x x+43+47=180
im looking at triangle ABD
so it is x=90 as we thought
you can go with the fact angle bisector in isos triangle is perpendicular to the base
if you one a different method
so x=90 then look for y
read about angle bisector