Chișinău-Madrid-Bucharest

The three cities form a triangle on the map. Calculate the perimeter of this triangle (i.e., the sum of the three distances).

a) How many kilometers does the plane travel along the route with the stopover?

b) By how many kilometers is this route longer than the direct flight from Chișinău to Bucharest?

Compare the route with a layover to the direct flight. How many times longer or shorter is the route with a layover? (Round the result to a whole number.)