Question

In a parallelogram ABCD,

Answer 1

In parallelogram ABCD
Opposite angles are parallel
if A=45 then C=45=90
now,
sum of the area of parallelogram =360
A+B+C+D=360
45+B+45+D=360
90+B+D=360
B+D=360-90
=270
NOW THERE ARE TWO ANGLES THEREFORE IT IS DIVIDED BY 2
B+D=270/2
=135
THEREFORE.,
ANGLE B=135
D=135
ANS-A=45,B=135,C=45,D=135

Answer 2

ANSWER

A = 45°

A = 45°B = 135°

A = 45°B = 135°C = 45°

A = 45°B = 135°C = 45°D = 135°

STEP BY STEP EXPLANATION

In the given parallelogram ,

A = 45°

In a parallelogram opposite angles are equal

so,

A = C = 45°

and also

sum of adjescent sides of a parallelogram = 180

so,

A + B = 180°

45° + B = 180°

B = 180° - 45°

B = 135°

similarly,

B = C = 135° [opposite angles]

so,

A = 45°

B = 135°

C = 45°

D = 135°