Identify all the numbered angles that are congruent to the given angle. 21°72
6/7
4/5
List the numbers of any angles that are congruent to the given angle.
(Use a comma to separate answers as needed. Do not include the symbol in your answer.)

or

step-by-step explanation:

we need to solve for 'x' the following equation:  

we have that:

⇒

⇒ ⇒

factorizing, we get that:

  ⇒

then, the solutions are: or

nothing extraneous has been found!

15: 24

62.5%

step-by-step explanation:

cool? what is the actuall ?

step-by-step explanation:

52 \43 i don't know this i tried