Question

solve??????????????????​

Answer 1

Answer:

we have to do angle sum property of triangle

∆CDB

THAN ANGLE A = ANGLE C ( OPPOSITE ANGLES OF A PARALLELOGRAM )

THE SUM OF ADJECENT ANGLES ARE 180° SO ANGLE A + ANGLE B = 180°

WE HAVE TO REPEAT IT WITH ANGLE D ALSO

Answer 2

A=c= 80

D=c= 100

Step-by-step explanation:

in triangle bdc

angle d +angle B +angle C= 180

..sum of all angles of triangle

45+55+c= 180

c= 180- 100

c= 80

c= A... opposite angle of parallelogram

a= 80

Dc is parallel to ab

db is transversal

d= b = 45 ..... alternate angle

therefore

D = 45+55=.100

and B = 45+55=100

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