need the work by the way

Answer:
49º
Step-by-step explanation:
The total amount of º in a triangle is 180
7 10
90. 180
+41. -131
131. 049
Answer:
49°
Step-by-step explanation:
x+41°+90°=180°[ being sum of angle of triangle is 180°]
or, x+131°=180°
or, x=180°-131°
or, x= 49°
Answer: 49°
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[Note: This is right angled triangle so that one angle is 90° because there is a sign given to indicate it is 90°]