8. A map has a scale of 1 : 50 000. 8. a) If the distance on the map is 2,5 cm, what is the actual distance on land?
8. b) Convert the answer from a) to kilometres.
8. c) If the distance on land is 4,2 km, what is the distance on the map?

hope it you

step-by-step explanation:

sin(7pi/6 - pi/3)  

= sin(7pi/6 - 2pi/6)  

= sin(5pi/6)  

= sin(pi - pi/6)  

= sin(pi/6)  

= 1/2  

sin 7pi/6 - sin pi/3  

= sin (pi + pi/6) - sin pi/3  

= -sin pi/6 - sin pi/3  

= -1/2 - sqrt(3)/2  

= -(1+sqrt(3))2

36

step-by-step explanation:

just sum

10 + 10 = 20