Answer: A. 4 m
Explanation:
We know that a rhombus is a kind of parallelogram.
Area of parallelogram = (Altitude ) x ( Base)
Thus , Area of rhombus = (Altitude ) x ( Base)
As per given , Base = 2.5 meters
Area of rhombus = 10 square meters
Substitute all values in formula , we get
![10=(\text{Altitude})*2.5\\\\\Rightarrow\ \text{Altitude}=(10)/(2.5)=4](https://img.qammunity.org/2020/formulas/mathematics/high-school/apw0knyks2rsc130d1atll70jgdgnpy2rf.png)
Hence, the altitude of a rhombus is 4 m.
Thus , the correct answer is A. 4 m ,