Annie drove 40 miles north on highway 77 then 30 miles west on highway 100. How far away from her starting point is Annie?

Answer 1

50 miles from the starting point

It's a 3-4-5 right triangle

d^2 = 30^2 +40^2 = 900+1600 = 2500

d^2 = 2500

d = sqr2500 = 50 miles