# Triangle P Q R is shown. The length of P Q is 20 and the length of P R is 12. Angle Q P R is 68 degrees and angle P Q R is 36 degrees. Trigonometric area formula: Area = One-half a b sine (C) What is the area of triangle PQR? Round to the nearest tenth of a square unit.

2 answers

###### Question:

Triangle P Q R is shown. The length of P Q is 20 and the length of P R is 12. Angle Q P R is 68 degrees and angle P Q R is 36 degrees. Trigonometric area formula: Area = One-half a b sine (C) What is the area of triangle PQR? Round to the nearest tenth of a square unit.

## Answers

Answer: 112.3 square unitsStep-by-step explanation:Find the sketch of the triangle attached.Area of the triangle = [tex]\frac{1}{2}|PQ| |PR| sinQPR[/tex]Given PQ = 20, PR = 12 and ∠QPR = 68°Area of the triangle = 1/2 * 20 * 12 * sin68°Area of the triangle = 120sin68°Area of the triangle = 112.26 square units Area of the triangle ≈ 112.3 square units (to the nearest tenth of a square unit)

Answer:111.3Step-by-step explanation:

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