Question

Can someone help me with this question please

Answer 1

The formula of an area of a rhombus:

$A=\dfrac{diagonal_1\cdot diagonal_2}{2}$

The diagonals bisect each other. That is, they divide each other into two equal parts.

Therefore we have:

$diagonal_1=2\cdot1.2m=2.4m\\\\diagonal_2=2\cdot0.9m=1.8m$

Substitute:

$A=\dfrac{2.4\cdot1.8}{2}=2.16\ m^2$

Answer: 2.16 m²