Determine the unknown angle measures in the figure.
m∠ 1=
m∠ 2=
m∠ 3=
m∠ 4=
m∠ 5=

KEEP IN MIND THE TOTAL AREA OF A TRIANGLE IS 180 DEGREES
KEEP IN MIND A STRAIGHT LINE IS ALSO 180 DEGREES
Answer:
1- 80
2- 112
3- 131
4- 80
5- 37
Step-by-step explanation: