4 years ago

(11x - 1) (20x – 3) 151°

Mathematics

1 answer:

IgorC [24]4 years ago

4 0

Answer:

x= 1.6 degrees

Step-by-step explanation:

to find the missing angle 180 degrees - 151 degrees

29° is the missing angle at the bottom ryt of the triangle.

all angles in triangle add upto 180°

so, 20x-3°+11x-1°+29°= 180°

31x=180°-25°

x= 1.6°

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