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In figure, sides Q P and R Q of P Q R ar...

In figure, sides `Q P` and `R Q` of `P Q R` are produced to point `S` and `T` respectively. If `/_S P R=135^@` and `/_P Q T=110^@,` find `/_P R Qdot` Figure

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from figure ext`/_SPR=/_PRQ+/_PQR`
`135^@=/_PRQ+/_PQR`......(1)
`/_PQT+/_PQR=180^@`
`110^@+/_PQR=180^@`
`/_PQR=70^@`...(2)
from (1) and (2) we have
`135^@=/_PRQ+70^@`
`/_PRQ=65^@`
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