Question

class 7 sub maths plz say full answer with full methods​

Answer 1

Step-by-step explanation:

(S) CO=DO ( O is midpoint of CD)

(A) angle COA = angle DOB ( Vertically opp angle)

(S) AO=BO ( O is midpoint of AB)

By SAS property of congruency of triangle

we can say that ∆AOC is congruent to ∆BOD