Write an equation for the sum of the angles in this triangle. Use your equation to find the value of $x$ .
Give your answer in degrees $(^{\circ})$ .
Not drawn accurately

Answer

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Answer

$x = {22.5}^{\circ}$

Steps

Step 1 ： $x + 2 x + 5 x = 180^{\circ}$

Step 2 ： $8 x = 180^{\circ}$

Step 3 ： $x = \frac{180^{\circ}}{8}$

Step 4 ： $x = {22.5}^{\circ}$