Question

In thr Rhombus ABCD, AB=4cm and <BCD=60. Find the diagonal BD​

Answer 1

In the Rhombus ABCD ,

The diagonal BD is 4 cm .

Answer 2

Given: AB=4cm and ang BCD=60

To Find:  The diagonal BD​

Solution:

• Let the intersecting diagonal be O,

• So then, considering the triangle OBC,

              cos 60= OB/BC

• Applying values of cos 60 and solve further,

              1/2 = OB/4

              OB = 2cm

              Now, OB + OD = DB,

       (its one of the diagonals)

• Putting values of OB and OD,

           2+2=DB

           DB = 4cm

Answer:

• Db is equal to 4 cm.