Gina looks at the architectural plan of a four-walled room in which the walls meet each other at right angles. The length of one wall in the plan is 17 inches. The length of the diagonal of the floor of the room in the plan is approximately 18.79 inches.

 It can't be in the shape of square.

Step-by-step explanation: Since we have given that

Length of one wall in the plan = 17 inches

Length of the diagonal of the floor of the room in the plan = 18.79 inches

Suppose the room is in the shape of a square.

So, We know the formula for "Diagonal of square":

Hence, it can't be in the shape of square.

its definatley   this on your answer choice?

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°