Question

mentally evaluate all of the missing angle measures in each figure.
1.
type your answers in the boxes.
\\( \angle d a e = \\)
keypsid
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Explanation:

Step1: Recall the definition of a straight angle

A straight angle measures \(180^{\circ}\). In the figure, \(\angle DAB+\angle DAE = 180^{\circ}\) (they form a straight - line at point \(A\)).

Step2: Substitute the known angle value

Given \(\angle DAB = 50^{\circ}\). Let \(x=\angle DAE\). Then \(50^{\circ}+x = 180^{\circ}\).

Step3: Solve for \(x\)

Using the subtraction property of equality \(x=180^{\circ}-50^{\circ}\).

Answer:

\(130^{\circ}\)