Points a, b, and
form a triangle. complete the statements to prove that the sum of the interior angles of aabc is 180°.
statement
reason
points a, b, and form a triangle.
given
let de be a line passing through band parallel to ac. definition of parallel lines
23 25 and 21 % 24
mz1 = m 24 and 23 = m25
m24+ m 22+ m25 = 180°
angle addition and definition of a straight line
m21 +22+ m23 = 180°
substitution
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answer:

idk

step-by-step explanation:

question 1 is 8, question 2 is 9, question 3 is 24

step-by-step explanation:

now, the numbers they give you at the top are the key. from there, you just have to plug and chug! let's try 1, 2, and 3!

key: a=3, b=5, c=6

1. a+5

remember, a=3, so we plug that in to get 3+5=8

2. 15-c

c=6, so we plug that in to get 15-6=9

3. 4b

b=6, so we plug it in to get 4*6=24

time to try the rest on your own! if you put the answers below in a comment, i'll check them for you!