Q. The angle bisector of angle ACD in rhombus ABCD makes a 64∘ angle with the diagonal BD. Find the measure of angle BAD
Diagonal Bisects Angle: In a rhombus, the diagonals are perpendicular bisectors of each other. So, diagonal BD bisects angle ACD into two equal angles.
Angle Bisector Relationship: Since the angle bisector makes a 64-degree angle with diagonal BD, each of the two equal angles formed by the bisector and the diagonal is 64 degrees.
Angle ACD Measurement: Therefore, the full measure of angle ACD is 64 degrees + 64 degrees = 128 degrees.
Opposite Angles Equality: Now, in a rhombus, opposite angles are equal. So, angle ACD is equal to angle BAD.
Angle BAD Measurement: Thus, the measure of angle BAD is also 128 degrees.
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