Mathematics · Geometry

In a circle, points A, B, C, and D lie on the circumference such that angles &ang;ABC and &ang;BDC are subtended in the same segment. If &ang;ABC = 81° and &ang;ACB = 9°, what is the value of &ang;BDC?

Verified Solution4 OptionsUpdated: October 2026👁️1 View

Correct answer

90°

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In a circle, points A, B, C, and D lie on the circumference such that angles &ang;ABC and &ang;BDC are subtended in the same segment. If &ang;ABC = 81&deg; and &ang;ACB = 9&deg;, what is the value of &ang;BDC?