Question

A straight road 8 miles long runs from A to B. Another straight road goes from B to C and is 3.5 miles long. The angle btween these two roads is a right angle. It is proposed to build a new straight road from A to C. What distance would be saved on the journey from A to C?

Answer 1

@triciaal

Answer 2

so pythagorean theorem
c^2 = a^2 +b^2
where c is the hypotenuse of a right triangle

Answer 3

let me see your diagram

Answer 4

(with a 90 degree angle )

Answer 5

i got c=8.7