Question

PLZ DONT SCAM.GEOMETRY CLASS 10 CHAPTER 1 SIMILARITY SOLVE USING BASIC PROPORTIONALITY THEOREM.​

Answer 1

Answer:

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Step-by-step explanation:

so as here pq parallel to bc

by basic proportionality theorem

we get

ap/pb=aq/qc=3/2 (1)

also as qr parallel to ab

again idung basic proportionality theorem

we get

qc/aq=cr/br (2)

ie ap/pb=cr/br=3/2 from (1) and (2) (3)

1.

thus CR/RB=3/2

Similarly applying invertendo

we get

RB/CR=2/3

2.

So from (3) we can conclude that

AP/PB=CR/BR

applying again invertendo

we can thus say that

PB/PA=BR/CR

3.

since PB/PA=BR/CR

by converse of basic proportionality theorem

we can say that

PR PARALLEL TO AC