Question

in a rhombus ABCD, angle cba=40 find the other angles

Answer 1

Answer:

In a rhombus opposite angles are equal

So, angle cba=angle adc=40

and in a rhombus sum of all angles is 360

so, A+B+C+D=360

as angle A= angle C and angle B=angle D=40

hence A+40+A+40=360

2A+80=360

2A=360-80

2A=280

A=140

so, C=140

Answer 2

In a rhombus opp angles equal
Therefore angle d equal to angle b