How do I estimate an angle within 15 degrees?

How to estimate an angle within 15 degrees:

A 90° angle looks like the corner of a square, This angle is about

1  1/3  times the size of a right angle.

Multiply:

1 1/3 × 90° = 120°

This angle measures 120°.

c: lkllmn.

hope it's you

the highest percentage for deaths in construction from highest to lowest is as follows: falls, struck by objects, electrocution, and caught-in/between. these four are collectively known as fatal four.

in the case of falls, the type that is responsible for the overall highest death in the category is falls from roofs.