Math, asked by poojakumaresh26, 1 year ago

According to similarity if
(i) <a =<d,<b=<e, <c = <f
(2) AB/DE = BC/EF = AC/DF

the triangle is similar so....
is it also same as BPT does.this also come under it AQ/AB = AP/AC?!(fig reference)

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TPS: There are no points E, F and T? have you posted correctly?

Answers

Answered by TPS
3
According to similarity if
<a =<d,<b=<e, <c = <f

Then ∆ABC ~ ∆DEF

After that, we can say
(2) AB/DE = BC/EF = AC/DF

_______________________

In the figure, if PQ is parallel to CB,

then <PAQ = <CAB
<PQA = <CBA
<APQ = <ACB

So ∆AQP ~ ∆ABC

Now, we can say AQ/AB = AP/AC

TPS: if PQ is not parallel to CB, then it wont be true.
poojakumaresh26: so after proving the angles equal thn only we can say that the ratios of their side is equal?! huh
poojakumaresh26: so we consider the ratio of AQ/AB similar not AQ directly equal to AB
TPS: that's one way. You need to prove the triangles are similar. you can use any condition. i have used AAA similarity condition.
poojakumaresh26: ohkay.....
TPS: you can use SSS similarity condition or any other, i dont remember all
poojakumaresh26: so even if i prove the ratio of sides are equal thn also i can say that the angles are equal after proving them similar ?! huh
TPS: similarity and congruency is in 7th class(in cbse). you must know it
TPS: yes..
poojakumaresh26: ohkay got it..
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