Answer:
60 cm
Step-by-step explanation:
step 1
Find the value of y
we know that
The diagonals of a parallelogram bisect each other.
so
DE=EB
substitute the values
3y+6=5y-10
solve for y
5y-3y=6+10
2y=16
y=8 cm
step 2
Find the length of diagonals BD
BD=3y+6+5y-10=8y-4=8(8)-4=60 cm
