40. In the given figure, PQ = PR, triangle P = 56° and triangle PRS=24", QRS is equal to
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Answer:
Step-by-step explanation:
Given In △PAR,∠PAR=90∘
⟹PR2=PA2+AR2
⟹PR=62+82
=100
=10 cm
In △PQR,
PQ=24 cm,PR=10 cm,QR=26 cm
Here QR2=262=676,PQ2+PR2=242+102=576+100=676
⟹QR2=PR2+PQ2
⟹∠QPR=90∘
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