Question

In triangle PQR, PQ = 8 cm, QR = 6 cm, and mZPQR = 30°.

Exactly how long is PR?
P
8 cm
30°
6 cm
R

Answer 1

PR = 10

Explanation:

Pythagoras

hypotenus ² = base² + attitude ²

substitution ; PR² = 6²+8²

PR² = 100

PR = √100

So, PR = 10

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