In ΔPQR, Q= 90o, PQ = 8 cm and ∠PRQ = 45o. Find the length of QR.
Answer & explanation
Correct answer: option 4
In ΔPQR, ∠Q = 90°,
PQ = 8 cm and ∠PRQ = 45°.
The sum of all angles of a triangle = 180°.
An isosceles triangle has both two equal sides and two equal angles.
Hence, PQ = QR = 8 cm