Question

Find x without using the property of angle sum of a triangle​

Answer 1

Step-by-step explanation:

$4 {x}^{o} + 2 {x}^{o} + 3 {x}^{o} = 180$

$9 {x}^{o} = 180$

${x}^{o} = \frac{180}{9}$

$x = 20$

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