Question

In a triangle PQR, angle R=90°, PQ=7.5 and PR = 4.5. Calculate QR

Answer 1

It is a isosceles right angle triangle.

It is 45°-45°-90° triangle.

PQ=QR.....(isosceles triangle theorem)

PQ ×√2 = PR

7.5√2 = PR .... (45°-45°-90° THEOREM ).

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