Respuesta :

karkismriti176

Answer:

x=7

y=4

JKL=49°

Step-by-step explanation:

7x+131=180

or, 7x=180-131

or, 7x= 49

x= 7

99+131+7×7+11×7+y=360

or, 99+131+49+77+y=360

or, y= 360-356

y=4

JKL = 7x=7×7=49°