Answer:
pentagon
Step-by-step explanation:
got 5 sides
Answer:
X ≈ 117.9°
Step-by-step explanation:
The law of cosines formula is given. Solving it for C, we find ...
C = arccos((a^2 +b^2 -c^2)/(2ab))
where a and b are the sides adjacent to the angle of interest.
Here, we have ...
X = arccos((50^2 +55^2 -90^2)/(2·50·55)) = arccos(-2575/5500)
X ≈ 117.9°
Answer:
7 and 3
Step-by-step explanation:
The sum of them is 10. and there are 4 numbers between them.
3 + 7 = 10
7 - 3 = 4
<u>We are given:</u>
Speed of the train = 90 km/h
<u>Converting the speed to km per minute:</u>
<u></u> [since 1 hour = 60 minutes, h/60 minutes is equal to 1]
The 'h' in numerator and denominator will cancel out
90km / 60 min
1.5 km/min
<u>Distance travelled in 2 minutes:</u>
Distance = Speed * time
Distance =
Distance = 3 km