What does the metaphor maria blossomed at her new school mean?

meaning becoming her own way of beautiful, it mean she is  looking more pretty or getting better at something  that she lack in the past.

right angles are formed by perpendicular lines. if the lines would extend, to make two intersecting lines, they would form four right angles.

either a donut or a sphere or a pancake or a flat sphere. it depends on where the vertical line is.

if the line goes through the center of the circle and is perpendicular to a diameter containing the center, then you get a flat circle.

if the line and the diameter of a the circle meet in the center of the diameter and at an angle, you get a pancake.

if the line is on the circumference of the circle and is at right angles   to the circle you get a ring.

if the line contains the diameter, you get a sphere.

the the line is parallel to the diameter and touches the circumference, you get a donut.