Question

find the measure of an angle which forms a pair of supplementary angle with itself

Answer 1

let angel is x.
another angel will be also x.
x + x = 180
2x = 180
x = 90.

Answer 2

# Solution -

Let the measure of the angle be β.

Then,

➟ β + β = 180°

➟ 2β = 180°

➟ β = 180°/2 = 90° _______[ANSWER]

# Extra Information -

Two angles, the sum of whose measure is 180°, are called supplementary angles.

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