Question

Find the missing measure angle

Answer 1

Answer:

${x}^{o} = {102}^{o}$

Step-by-step explanation:

Hint:

sum of angles = 360°

Simplify:

${x}^{o} + {78}^{o} + {90}^{o} + {90}^{o} = {360}^{o} \\ {x }^{o} + 258^{o} = {360}^{o} \\ {x}^{o} = {360}^{o} - {258}^{o} \\ {x}^{o} = {102}^{o}$

Hope it is helpful....

Answer 2

Answer:

Step-by-step explanation:

x+90+90+78=360(sum of 4 angles is always 360 degree)

x+258=360

x=360-258

x=102