Question

vertical/adjacent/complementary angles l2
question
video examples
find the measure of the missing angle.
answer
attempt 1 out of 3
a = submit answer

Explanation:

Step1: Sum of angles on a straight line

The sum of angles on a straight line is \(180^{\circ}\).

Step2: Calculate the value of \(a\)

We know one angle is \(50^{\circ}\) and another is \(90^{\circ}\) (right - angle). So, \(a = 180^{\circ}-50^{\circ}-90^{\circ}\).

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Answer:

\(40\)