Identify the area of a regular octagon with side length 13 ft rounded to the nearest tenth.

Hey there!

Formula for area of an octagon:

A = 2(1 + √2)a²

The variable a is side length.

Plug in 13 for a.

A = 2(1 + √2)13²

Simplify.

A = 2(1 + √2)169

A = 338(1 + √2)

A = 816 ft²

Hope this helps!

a negative exponent is translated as follows:

so, we have

reduce the friction between its moving parts

step-by-step explanation:

in fact, by reducing the friction between the moving parts of the machine, it is possible to reduce the energy wasted due to this friction; therefore, more input energy is converted into useful work, and this will improve the efficiency of the machine.