<u>Let's take this problem step-by-step</u>:
<u>The ;unlabeled angle' adjacent to the 'outside angle of measure 78°'</u>
⇒ is on a straight line
⇒ sum of angle measure = 180 degrees

<u>Now we know:</u>
⇒ sum of all angles in a triangle ⇒ 180°
<u>Let's put that in equation form and solve:</u>

<u>Answer: 21°</u>
<u></u>
Hope that helps!
#LearnwithBrainly
Answer:
9 and 18
Step-by-step explanation:

Answer:
Bro look it up
Step-by-step explanation:
On google
P(7) = 
There are 8 possible outcomes from the spinner and only one 7, hence
P(7) = 
Uh... What diagram? I cant understand what you are tryimng to ask if i dont even know where the diagram is. Just saying.