Respuesta :

soloveiarina

Answer:

do 2x + 52 = 21 + x + 31 and solve for x and plug it in

please let me know if this was helpful :)

katekaulfers05

Answer:

69* degrees

Step-by-step explanation:

You have half of 180 degrees which is 90 degrees if you subtract 21 from that 90 you are left with 69 degrees

Hope this is correct and helps you :3

(write feedback if incorrect or correct it really helps me to learn from my mistakes)