Shaun rides 8 kilo meters west from his house to school. After school he rides 6 kilo meters north to Mario's house. What is the distance from Mario's house to Shaun's house measured in a straight line?

Answer 1

sqrt(64 + 36) = 10

(a three four five right triangle)

Answer 2

You are finding the hypoenuse, using the Pythagoran theorem

D^2 = 8^2 + 6^2 = 100
D = √100 = 10 km