If svg has height and width attributes, why does the shape(circle, rectangle) also have height and width attributes too?.

Answer 1

yes, and blue is the shape.
play with those values to understand better.

Answer 2

think of SVG as the canvas where you want to draw shapes.
shapes can be of different sizes and forms.
the width and height of shapes control their size and form.

Answer 3

https://code.sololearn.com/WRjgagvp6Rcb/?ref=app

Answer 4

So the svg covers that red border, yeah?