Anyone wanna talk im bored :/

In simplified exponential notation, the expression a^2•a^-3•a 1/a 0

Answers; a) 135 degree’s b) 30 degree’s c) 180 or 0 degree’s d) 90 degree’s

To prove that angle def = angle dgf by sas, what additional information is needed? def congruent to dgf dfe congruent to dfg de congruent to dg dg congruent to gf