The diagonals of a rectangle ABCD intersects at O. If angle AOB=64°, find angle OCB
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Answer:
angle C = angle B =90° [ corner angles of a rectangle is 90°]
1/2 angle C = 1/2 angel B
Angle OCB= angle OBC --(1)
In A OBC
angle OBC +angle OCB +angle BOC=180°
Angle OCB+angle OCB + 116° = 180°
[from eq 1]
2angle OCB = 180°-116
2 angle OCB = 64°
Angle OCB = 64/2
angle OCB = 32°
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