Lol idk why do we even got to do all these extra math stuff like it’s not gonna help us
Answer:
x=20
Step-by-step explanation:
(triangle angles must add up to 180º)
2x+10+2x+90=180
4x+100=180
4x=80
x=20
Divide 138.16 by 3.14. This gives a diameter of 44 meters.
Hope this helped :)