Respuesta :

Geometry is about shapes. It includes trigonometry, as well. It also includes angles. It also includes finding equations of angles.
if an angles measure is 90 degrees, then it is a right angle.

if angle a has the same measurement as angle b, then they are congruent angles.

if 2 angles added together equal 180 degrees, then they are supplementary angles.

if a quadrilateral is a square, then it has 4 congruent sides and 4 congruent angles.