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emi:
i dont get the part why u used the Pythagoras theorem to get the answer  . 

=(

astarmathsandphysics:
The first man is east of the pole and the 2nd man is |South. Between South and east the angle is 90 degrees - a right angle.

emi:
thank you

i got it now =D

emi:
i dont know how to solve this Question ,,

Q: The sum of two numbers is 131. Twice of one number is 5 less than the other . find the numbers

at the back of the book answers are " 42 and 89 "

sweetsh:
let me answer it for you.

By simultaneous equations.

Let the numbers are x,y

x+y=131
this is equation (1)
now.. 2x-y=5
as 2x+5=y

now solve it.
you will get x=42 and y=89

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