Important answer quick doing test worth 30 points
Which set of three angles could represent the interior angles of a triangle?
190, 700, 91°
470, 120, 310
500, 200, 20°
250, 250, 100

the answer will be b x² +x-1

step-by-step explanation:

2.2°  

step-by-step explanation:

let θ = the angle of elevation.

tanθ =77/2020

tanθ = 0.038 12

      θ = tan⁻¹0.038 12

      θ = 2.2°

step-by-step explanation:

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step-by-step explanation:

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