X = 10 * 3^n
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12 + 6x + 6x + 6y = 12 + 12x + 6y
Answer:
m<1 = 79°
Step-by-step explanation:
12x + 19 + 22x - 9 = 180
add the numbers
34x + 10 =180
minus 10
34x = 170
divide by 34
x = 5
plug 5 into the equation of angle 1
12(5) + 19 =
79
12
The shape has 12 lines of symmetry because you add
up all the sides
