Take the following as truth: In a morning's tour from Morlaix, about 160 km (100 miles) to the west of Dinard, you can take in three of the most important ones on a route signposted as the Circuit des Enclos Paroissiaux. 
Then the following statement: "Dinard is about 100 miles to the east of Morlaix." is true, false, or inconclusive?