Vaughn is calculating the volume of the cylinder below using the following work. What was Vaughn’s first error?
A. He confused the height and the diameter.
B. He squared 12 instead of 24.
C. He applied the exponent before multiplying 12 and 5.
D. He used the wrong units in his final answer.

A. He confused the height and the diameter

Step-by-step explanation:

the formula should have looked like this

V= 3.14 (2.5)^2 (24)

the reason why it is 2.5 and not 5 is because 5 is the diameter so divide 5 by 2 and you get 2.5

V= 3.14 (6.25) (24)

V= 3.14 (150)

V= 471

the reason why your question keeps getting deleted because this is not a school related question : )

i will answer your question though.

i never tried church's

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°