Describe how the sun provides the energy that causes convection in the atmosphere and produces winds

Due to the sun creating radiation then altering it across earth. The convection wind is caused by hot air becoming denser as it gets cooler than warming up again cause the air to become lightly dense causing wind currents.

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