I need to show my work as well

angle y= 90

angle z= 45

angle x= 45

Step-by-step explanation:

Atriangle has 180 degrees. The y angle is 90 degrees because whenever a shape has the square thing it means it is 90 degrees. so 180-90 = 90. Since both of the other angles are the same 90/2 = 45. so angle y= 90 degrees and angle z= 45 degrees and angle x=45 degrees

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°

this may not be at all, but i use the same website you're using for school, and if i'm stuck doing one of these i try to look for it on the section.