Question

why are roads in hills longer?​

Answer 1

QUESTION =>

Why are roads in hills longer?​

Answer

Roads in hills are longer because if a vehicle is moving from that place without any accident it can go in a safe manner and it have steep slope also

Answer 2

Answer:

hello mate, here is your answer-one reason is because vehicles such as semi trucks have difficulty when grade has too steep .... when music zig zag up the hill, you are reducing the steepness of the incline by making it longer and flatter.