A water balloon cannon is fired at 35 m/s at an angle of 50∘ above the horizontal. How far away will it fall?

Use the equation in the physics reference sheet. You can use the distance formula

Distance^2= yellow line ^2 (see picture) = 30^2 + 49^2so distance = squareroot of (300^2 +49^2)i dont know if this is how to solve it, but i cnt think of another way