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Geometry: Find the area of each figure. Round to the nearest tenth.

Geometry: Find the area of each figure. Round to the nearest tenth.-example-1
User Fima
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1 Answer

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Answer/Step-by-step explanation:

Apply the formula for area of a triangle with an included angle and two given side lengths, A = ½*a*b*Sin(θ)

15. a = 3 cm,

b = 3 cm,

θ = 140°

A = ½*3*3*Sin(140)

A = 2.89 ≈ 2.9 cm² (nearest tenth)

16. a = 5 yd,

b = 8 yd,

θ = 98°

A = ½*5*8*Sin(98)

A = 19.81 ≈ 19.8 yd² (nearest tenth)

17. a = 5 cm,

b = 6 cm,

θ = 152°

A = ½*5*6*Sin(152)

A = 7.04 ≈ 7.0 cm² (nearest tenth)

17. a = 5 m,

b = 6 m,

θ = 150°

A = ½*5*6*Sin(150)

A = 7.5 ≈ 7.5 m² (nearest tenth)

User Jamie Taylor
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