Answer :

Given, in ΔPQR, PQ = 10 cm, QR = 12 cm, PR = 8 cm

We know, If two sides of a triangle are unequal, then the angle opposite to

the greater side is greater than angle opposite to the smaller side.

Here greater side is PQ and the smallest side is PR

∴ Angle opposite to QR = ∠QPR

Angle opposite to PR = ∠PQR

Greatest angle of triangle = ∠QPR

Smallest angle of triangle = ∠PQR

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