Throwing a Short Put - simple Distance problem?

[helpphysics]

Homework Statement

Boy throws a shotput at angle of 45Degree which travels a horizontal distance of 30m
If he releases same shotput at same speed but changes angle to 55 Degree, what will be the new range or distance?
A) 25m B)41m C)28m D)37m E)32. m

Homework Equations

That's what i am finding.?/?

The Attempt at a Solution

I tried using the info posted somewhere like
Distance = 1/2 * (acceleration) * (time squared) + (Velocity) * (Initial time) + (Initial Distance)
But i am not able to get what to put where? what to put in velocity? horizontal or vertical?
I am not even sure this is correct way.
Pleas hlp...driving me nuts!
Just explain me the concept with equation, if you do not want to solve for me. please

 

[jack action]

http://en.wikipedia.org/wiki/Trajectory#Range_and_height"

 

[helpphysics]

Thanks for your help. That worked nicely