Mathematics, 25.04.2020 01:47 naomicervero

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

Answers: 2

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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 degre...