It means "measure". So m<AVB is saying "the measure of Angle AVB is/= ? degrees".
It means Angle, Angle, Angle.
It is called an angle!
Examples: distance (m), area (m2), volume (m3), angle (degrees).
It stands for ANGLE SIDE ANGLE
It is an angle that is 90 degrees.
It is the alternate angle to the angle of elevation
Acute angle, right angle and obtuse angle
The bond angle in a pentagonal bipyramidal molecular geometry is 90 degrees.
Means its complementary
The word adjacent means "next to" or "adjoining".In geometry, the adjacent side of an angle in a right triangle is the one that is not the opposite from the angle, and is not the hypotenuse.Not sure about ajacent. Adjacent means "next to" or "adjoining".
Theta
Acute angle, algorithm, altitude, angle, area and axis are geometry terms.