EM-3119

Sine rule

E Math · Secondary 4 · Medium · Sine rule

In a triangle

PQR

,

PQ = 160

m,

PR = 210

m and

\angle PQR = 40^\circ

. Using the Sine Rule, find

\angle PRQ

, correct to 1 decimal place.

$29.3^\circ$
$50.7^\circ$
$40.0^\circ$
$69.3^\circ$

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