Find the area of triangle PQR if PQ = QR = 12 and angle PQR = 120

1 answer:

Leona [35]3 years ago

3 0

Answer:

36√3 unit square

Step-by-step explanation:

A=1/2(ab)sin120

A=1/2(12*12) sin120

A=72*√3/2=36√3 unit square

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