Answer:
The amount required is
Step-by-step explanation:
From the question we are told that
The length of one side is
The length of the second side is
The angle between the line of sight of second and third side is
Generally using cosine rule the third side is evaluated as
=>
=>
The total amount of face required is mathematically evaluated as
I think u would do 18+5.5
Then multiply that by 5
They rode for 7 hours and traveled 400 kilometers.
Divide:
400 / 7 = 57.14
Answer = 57.14
Hope this helped☺☺