So i'm learning how to add vectors in physics, i kinda understand it but i don't understand how to do these questions

Do you know how to use cos(x) and sin (x) to find the legs of the triangle?

There is no graph to look at on here, but i shall explain them to you. a line graph is just in its title it’s a graph with a line running through the dots to show an increase or decrease. a bar graph is used to show how much or how little something is so a comparison. a scatter plot is used to graph points to tell the data. and i don’t know what a histogram is.