Question

Need help please on geometry

Answer 1

A = 1/2 * d1 * d2
A = 1/2 * 12 * 14
A = 84 sq.m

The anser is the 2nd choice, 84sq.m

Answer 2

To solve this we are going to use the formula for the area of a rhombus: $A= \frac{pq}{2}$
where 
$A$ is the area of the rhombus
$p$ is a diagonal of the rhombus
$q$ is a diagonal of the rhombus

We know from our problem that the diagonals of our rhombus are 14 cm and 12 cm, so $p=14cm$ and $q=12cm$. Lets replace those values in our formula to find $A$:
$A= \frac{(14cm)(12cm)}{2}$
$A=84cm^2$

We can conclude that the correct answer is: 84 square cm