Find the value of x :)

x = 55

ur welcome

let the third angle of triangle be y

21°+34°+y=180°[angle sum property]

55°+y=180°

y=180°-55°

y=125°

y+x=180°[by linear pair]

125°+x=180°

x=180°-125°

x=55°

answer: a and c are correct

step-by-step explanation:

the +5 is the vertical translation

the added negative symbol in front is the reflection over the y-axis

by definition, an arc subtended by a central angle of some given measure has the same measure. so .