Respuesta :

okpratikshaok57

Answer:

second no. answer is 120° because exterior angle is equal to the sum of two interior angles

bhadelsimron19

Answer:

Step-by-step explanation:

5x+25+4x-10+4x+2x=360 degree(sum of the interior angles of a quadilateral is 360 degree)

15x+15=360

15x=360-15

x=345/15

x=23

20 + 100=x (sum of two interior opposite angle is equal to the exterior angle formed)

120=x

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