Lucia works at her family's italian restaurant . A 20% tip is included with each other. one customer wants to know the price before tip and if the total price of his order was 33.60

The construction of copying qpr is started below. the next step is to set the width of the compass to the length of ab. how does this step ensure that a new angle will be congruent to the original angle? by using compass take the measures of angle and draw the same arc according to it.