Question

3. In the given figure, prove that the diagonals of a rectangle are equal​

Answer 1

Step-by-step explanation:

in triangle abd and triangle abc

ad=bc(opp.sides of the rectangle are equal)

Angle A=angle B(each is 90)

ab=ab(common in both the traingle)

hence triangle abd is congruent to triangle abc by sas criterion

ac=bd(by .c.p.ct.)