If I leave my house and drive straight for 30 miles, then turn left and drive 40 miles, how far am I from my house in a straight line?

Question

i dont know how to do this

Answer 1

Start by drawing a picture. When they say "turn left", I think we can assume that you make a 90-degree turn (right angle)

So, you might have a line 3" long going towards the top of the page and then another line going 4" to the left. The equivalent distance is a line directly from start to finish. This line forms the diagonal of a right triangle. You can get its length using the Pythagorean Theorem