Angles are represented by capital letters. Small letters refer to sides.
2
Capital letters that have right angles depend on the font, but I can find 10:BDEFGHILPRT2 Lower case letters with right angles are:ft
The letters E, F, and L contain right angles measuring 90 degrees
If two angles are vertical then they are congruent.
Angles are represented by capital letters. Small letters refer to sides.
2
T
M
Letters-xy and v but I'm not sure
Capital letters that have right angles depend on the font, but I can find 10:BDEFGHILPRT2 Lower case letters with right angles are:ft
not all congruent angles are vertical angles. Vertical angles must share a vertex.
The letters E, F, and L contain right angles measuring 90 degrees
Vertical angles are always, by definition, congruent. Note: If the two vertical angles are right angles then they are both congruent and supplementary.
If two angles are vertical then they are congruent.
A
Vertical angles can be supplementary angles if the lines are perpendicular and then both of the vertical angles would be 90 digress.