Question

pliz someone answer for me diagram​

Answer 1

Answer:

AB=AD

AD=4cm

construct AD,

AD will bisect angle b at 60°(diagonals of rhombus bisect the angle equally.

In triangle ABD,

angle ABD=angle ADB,

angle ABD+angle ADB +angle BAD=180°(sum of angles of triangle)

60+60+angle BAD=180

angle BAD=180-120

angle BAD=60

thus triangle ABD is an equilateral triangle

so,

AB=AD=BD

BD=4 cm. answer..