Help on this math question please!?

Question

Jurgen was swimming across a 100 foot river. He was hoping to swim straight across, but the current carried him 35 feet down-stream. How far did Jurgen actually swim?

Answer 1

Just find the square root of 100 squared plus 30 squared.  

Answer 2

Draw it as a right triangle so that one leg is 100 feet straight across the river, the next leg is 35 feet down on the opposite side of the river.  This give you an L-shape, but when you connect the open ends to make a triangle, the diagonal line is the hypotenuse.  Since the formula for the hypotenuse of a right triangle is a squared + b squared  = c squared:

100^2 + 35^2 = c^2

10,000 + 1,225 = c^2

11,225 = c2

The square root of 11,225 is 105.95 feet, so that is how far he swam.

Answer 3

yeah do pythagorean theorem.

you need to find the hypotenuse, which is c^2

a^2+b^2=c^2

when a=100

and b=35

Answer 4

100ft

Answer 5

u gotta use pythagoras theorem... H^2=100^2+35^2 now solve to get H... that would be ur answer

Answer 6

I'm no mathematician, but is it not 135? 100 + the extra 35 he swam?

Answer 7

i think this is a common pythagoras problem...

distance^2 = 100^2 + 35^2

and the distance here is the answer to your question.