Answer:
x = 20
Step-by-step explanation:
The three angles form a straight line so they add to 180 degrees
x+ 100 +3x = 180
Combine like terms
100+4x= 180
Subtract 100 from each side
100+4x-100= 180-100
4x= 80
Divide each side by 4
4x/4 = 80/4
x = 20
Answer:
a) 1,3
Step-by-step explanation:
have a nice day!!!
Answer:
m∠2= 97
Step-by-step explanation:
When 2 angles are supplementary, they add up to 180 degrees.
We are told that angle 1 is 83 and the angle 1 and 2 are supplementary
So, angle 1 and 2 add up to 180, let's subtract 83 from 180 to find measure of angle 2
180-83=97
hope this helps! feel free to ask any questions
Answer:
-17
Step-by-step explanation:
Answer:
57
Step-by-step explanation: