A friend gives you a puppy for your birthday and offers to buy fencing for a dog run. What shape gives your puppy more area to run: a rectangle whose width is twice the length, a regular hexagon, or a square?

Regular hexagon will give puppy more area to run.

Step-by-step explanation:

We are given the following in the question:

Shapes: rectangle, regular hexagon, square

Rectangle:

Length,l = a

Width, w = 2a

Area of rectangle =

Regular hexagon:

Side length,s = a

Area of hexagon =

Square:

Side length, s = a

Area of square =

Comparison:

Thus, regular hexagon will give puppy more area to run.

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°