I will give brainliest, if it is right, and you are the first person to answer. A scale drawing has a scale of 2 cm : 21 km. Find the actual length for a drawing length of 4.5 cm.

41.4 km

47.25 km

35.8 km

23.5 km
sorry I ask so many questions, I hate this topic in math, tysm

47.25

Step-by-step explanation: it is 10.5 x the 4.5

9.55 degrees.

step-by-step explanation:

the given angle is

1 cycle is equal to 2π radians. so 4π will be equal to two cycles.

5.166667π-4π = 1.166667π

hence, this angle goes a little more than negative x axis.

1.166667π-π= 0.166667π

hence, the reference angle is 0.166667π radians.

1 radian = 57.2958 degrees

now, in degrees, this should be equals to 9.55 degrees.