a precentage of 6th graders. the population is all 6th graders. let me know if i'm wrong, i hope this ! : )
step-by-step explanation:
2.2°
let θ = the angle of elevation.
tanθ =77/2020
tanθ = 0.038 12
θ = tan⁻¹0.038 12
θ = 2.2°