What are some effective methods for scrolling? check all that apply. clicking the scroll arrows with the mouse clicking and zooming inside the document clicking and dragging the scroll box zooming in to 150 percent on the document zooming to 100 percent of the document

Cprogram to find //perimeter of rectangle printf(" \n perimeter of rectangle \n"); printf(""); printf("\n enter width and length of the rectangle : "); scanf("%f%f", & width,& length); perimeter = 2 * (width + length); printf("perimeter of rectangle is: %.3f", perimeter);