Answer:
161
Step-by-step explanation:
the sum of the two interior angles equals that exterior angle
121+40=161
Answer:
increase
Step-by-step explanation:
Increase definition: become or make greater in size, amount, intensity, or degree.
Decrease definition: make or become smaller or fewer in size, amount, intensity, or degree.
Answer:
it could either be 8C or -2C
Step-by-step explanation:
Answer:180 degrees
Step-by-step explanation:
Answer:
Step-by-step explanation: