Answer:
1) a 130° - (360 - (50×2)) /2
B 50° - opposite angles
2) a 25° - 90° - 65 = 25 °
B 270° - 360° - 90° = 270°
3) a ) 60° - 180° - 120° = 60° (there are 180° in a straight line)
B) 90° - 180°-90° = 90°
A right triangle has special proportions
Do 378 / 18
That equals 21
Then do 21 * 24
That equals 504
Conclusion: It would take 504 miles to go on for 24 gallons of gas.
Answer:
Step-by-step explanation:
Since A = 50 degrees, c = 10 ,and since it is a right Triangle, then C = 90 degrees and so B = 180 - (90 +50)......... sum of angles of a triangle
B = 180 - 140
B = 40 degrees
Using sine rule : a/sin A = b / sin B = c / sin C
To calculate a, then we use a/ sin A = c / sin C , since we know c and C
i.e a/ sin 50 = 10 / sin 90
recall that sin 90 = 1
then we have a / sin 50 = 10 / 1
cross multiply
a = 10 x sin 50
a = 10 x 0.76604
a = 7.6604
We will calculate b following the same procedure
b/ sin B = c / sin C
b/ sin 40 = 10/ sin 90
b/ sin 40 = 10/ 1
b = 10 x sin 40
b = 10 x 0.64279
b = 6.4279
Therefore a ≈7.6604 , b ≈ 6.4279
Answer:
It's the fourth answer, D.
