Answer:
9/20
Step-by-step explanation:
Total trials = 80
Observed successful trials = 36
36/80
= 9/20
D) center
i am taking the test rn and i got it correct just now
-chilly
here you go -brainliest
Angle A: 30°
Angle B: 60°
Angle C: 90°
Hopefully this helps! :)
