Question

find the lettered angle​

Answer 1

Answer:

let the angle opposite to the diameter be y.

now,

y = 90° (angle in the semicircle)

exterior angle = x +y

122° = x + 90°

or, x = 122°-90°

or, x = 32°

ans.

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Answer 2

Answer:

let the angle opposite to the diameter be y.

now,

y = 90° (angle in the semicircle)

exterior angle = x +y

122° = x + 90°

or, x = 122°-90°

or, x = 32°