The answer to this question is 8.3
I believe since it's a supplementary line, your answer will be 180-57
This would make your angle 123°. My apologies if I am wrong. I have not taken Geometry in a Year or two.
Answer:
400mph and 465 mph
Step-by-step explanation:
let the speed of first plane be x
speed of 2nd plane = x+65
dist travelled by first plane in 2 hrs = 2x
dist travelled by 2nd plane = 2(x+65)= 2x+130
when they meet, the sum of dist travelled by them is 1730
4x + 130 = 1730
4x = 1600
x = 400moh
x+65 = 465 mph