Respuesta :

Answer:

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°.

Ver imagen ssmit8760

Answer:

90 x 1/2= 45 degress

Step-by-step explanation: