Question

show that the area of rhombus is half the product of lenght of its diagonal

Answer 1

Let the d1 be 10 cm and d2 be 10 cm.
Now,
Area of Rhombus=1/2 * 10cm * 10cm
. 1/2 * 100cm™
. 50cm™

Sum of diagonals=d1 * d2 = 10cm * 10cm = 100 cm™

So,
Area of rhombus is half the product of length of its diagonals.
Proved