From the adjoining figure,calculate the remaining angles of the parallelogram ABCD
Answers
Answer:
80°+angle CBA=180°
CBA= 180-80
CBA= 100°
The parallelogram has the following properties: Opposite sides are parallel by definition. Opposite sides are congruent. Opposite angles are congruent.
Thus,
Angle CDA= 100°
Angle DCB=DAB
DCB + CDA=180° as they're adjacent angles.
DCB + 100 =180°
DCB =180-100
Angle DCB = 80°
Angle DAB =80° as the Opposite angles in a parellelogram are congruent.
Answer:
80°+angle CBA=180°
CBA= 180-80
CBA= 100°
The parallelogram has the following properties: Opposite sides are parallel by definition. Opposite sides are congruent. Opposite angles are congruent.
Thus,
Angle CDA= 100°
Angle DCB=DAB
DCB + CDA=180° as they're adjacent angles.
DCB + 100 =180°
DCB =180-100
Angle DCB = 80°
Angle DAB =80° as the Opposite angles in a parellelogram are congruent.