Question

Mara ran 3km north ad then 4km east. she will finish her run by running directly home. What is the total distance of her run

Answer 1

You can solve this with the Pythagorean theorem.

`{3}^(2) + {4 }^(2) = {c}^(2)`
9+16=25, and the square root of 25 is 5. This is your answer.

Answer 2

So we need to find the length of the hypotenuse of a right triangle with sides of 3 and 4, then add So we need to find the length of the hypotenuse of a right triangle with sides of 3 and 4, then add that distance to 3 and 4.
By the Pythagorean Theorme, the hypotenuse squared is equal to the sum of the sides squared...
d^2=3^2+4^2
d^2=9+16
d^2=25
d=√25
d=5
So the total distance of her run is 5+4+3=12 km