Answer:
3 pi.
Step-by-step explanation:
Answer: the c
Step-by-step explanation:
Answer:
A=50 B=40 C=90
Step-by-step explanation:
B is a right angle so its automatically 90 degrees since A=50 and a triangle has to be 180 degrees 90+50= 140, 180-140=40.
Answer:
21
Step-by-step explanation: