Question

How many right angles are in an octagon?

Answer 1

Typically, `0`

Explanation:

upload.wikimedia.org

A regular octagon has `0` right angles—all its vertices are `135˚`.

The angle measurement can be found through the formula `(180˚(n-2))/n`, where `n` is the number of sides in a regular `n`-gon.

This isn't to say octagons can't have right angles.

The following picture is of an irregular octagon with `2` right angles.

res.cloudinary.com