Annabelle used a protractor to measure the angle below. Is Annabelle using the protractor correctly? Explain your answer. If Annabelle is using it incorrectly, explain to her how to use it correctly.

she is not using the protractor correctly

Step-by-step explanation: to use a protractor correctly you need to put the bottom line Straight on the zero and then mesure the angle from there by seeing which number the topmost line hits in this case the correct angle would be 40o

she is using the protractor wrong she needs to take the side that is on the bottom and line it up with the 180° angle the look at the smaller number under the bigger number on the protractor

7 ft 6 in means 7 1/2, because 6 in is 1/2 of a foot. 7 ft 8 in means 7 2/3 because 8 in is 2/3 of a foot. 23/3 = 7 2/3. 15/2 = 7 1/2.

23/3   *   15/2   = 57 1/2

step-by-step explanation:

answer: 80,000

step-by-step explanation:

the population doubles every day.

10,000*2=20,000 day 4

20,000*2=40,000 day 5

40,000*2=80,000 day 6