Answer :
Answer:
11.75
Step-by-step explanation:
5x+3x-4+90 = 180
(the sum of interior angles of a triangle is always 180
8x-4+90 = 180
+4 +4
8x+90=184
-90 -90
8x=90
/8 /8
x = 11.75
Answer:
11.75
Step-by-step explanation:
5x+3x-4+90 = 180
(the sum of interior angles of a triangle is always 180
8x-4+90 = 180
+4 +4
8x+90=184
-90 -90
8x=90
/8 /8
x = 11.75