Find the value of x. what is the relationship of these 2 angles? set up and solve an equation

Mathematics

1 answer:

spin [16.1K]3 years ago

5 0

Answer:

x = 20°

Step-by-step explanation:

$4x + 5x = 180 \\ 9x = 180 \\ x = \frac{180}{9} \\ x = 20 \\$

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