Question

Find measure of c in fig if ABllDC​

Answer 1

Answer:

in ABCD:-

AB || CD. (given)

Therefore, 180-120= 60° (sum of angles on

the same side of the transversal)

Hence, angle C =60°

Answer 2

Answer:

OK

FIRST OF ALL, HAPPY TEACHERS DAY TO ALL

NOW, COMING TO THE QUESTION-FOR THIS WE MUST KNOW QUADRILATERAL PROPERTIES AND SOME SPECIAL PROPERTES,

GIVEN-ANGLE B=120 DEGREE

AB IS PARALLEL TO DC(THIS ONE IS IMPORTANT)

NOW, TO FIND-ANGLE C

ANGLE B+ANGLE C = 180 DEGREE(SUM OF CONSECUTIVE ANGLE IS 180 DEGREE)

OR,120 DEGREE+C=180 DEGREE

OR,C=180 DEGREE-120 DEGREE

HENCE, angle C IS 60 DEGREE, ans.

THANKS

Step-by-step explanation