4.5
pi is about 3.14 and root 23 is about 4.8 - the only number between these values is 4.5
The place value of three is the 100s place
The answer would be 1.40. The 3 significant figure are 1.39 and it wants us to round so we look at the 8 in 1.3981 and since 8 > 5 we know to round up.
If the car can travel 81 km in one hour, (60 minutes) that means that it can travel 81/60 in a minute. The result is 1.35, and this times 15 will give you the amount the car can travel in 15 minutes. The answer is 20.25km
Angle c 37° angle a 53° angle c 90°
