Question: Triangle E D F is shown. The length of E F is 8 and the length of D F is 5. Angle E D F
Triangle E D F is shown. The length of E F is 8 and the length of D F is 5. Angle E D F is 116 degrees and angle D F E is 31 degrees. Trigonometric area formula: Area = One-half a b sine (C) What is the area of triangle DEF? Round to the nearest tenth of a square unit. 10.3 square units 18.0 square units 20.0 square units 20.6 square units
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