Answer:
156.37°
Step-by-step explanation:
We solve this above question, using Cosine rule which is given as:
Cos C = a² + b² - c²/2ab
Let the Angle be represented as: x
Cos x = 310² + 200² - 150²/2 × 310 × 200
x = arc cos [ 310² + 200² - 150²/2 × 310 × 200]
x = 23.63°
The angle, in degrees, that he must turn through to head straight for Island B is given as:
180° - 23.63°
= 156.37°
Answer:
1 / 18
Step-by-step explanation:
Odds = 1 : 17
Probability = odd * (17 ÷ sum of odd ratio)
Sum of odd ratio = ( 1 + 17) = 18
= (1 / 17) * (17 / 18)
= 1 / 18
Answer:
B
Step-by-step explanation:
2g 1b because there's 2 girls and 1 boy
The triangle BAC has two known measurements 30 and 90 so add those together and subtract by 180
30 + 90 = 120
180 - 120 = 60°