A large pizza has a circumference of approximately 43.96 inches2. what is the diameter of the pizza? Use 3.14 to approximate Pi.
1 answer:
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Answer:
33°
Step-by-step explanation:
(9 , -1), (4 , 2)
cos α = (x₁ * x₂ + y₁ * y₂) / (√(x₁² + y₁²) * √(x₂² + y₂²))
x₁ = 9,
x₂ = 4,
y₁ = -1,
y₂ = 2
cos α = (9*4 + -1*2) / (√(81+1) * √(16+4))
= 34/ (√82 * √20)
≈ 0.8396
α = 32.91° ≈ 33°
