△ABC ~ △PQR , 18 x A(△ABC)=32 x A( △PQR), If BC =28 , then find QR
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Answer:
QR=14
Step-by-step explanation:
18×A(∆ABC)=32×A(∆PQR)32
18÷32=A(∆PQR)÷A(∆ABC)
1÷2=A(∆PQR)÷A(∆ABC)
THEN ,
1÷2=QR÷BC.........(BY similarity of triangle )
1÷2=QR÷28.........(given)
QR=28×1÷2
QR=14
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