How many hectares of land are there in a field that is 450 m long and 1200 dm wide.

Step-by-step explanation:

Given

Required

Determine the number of hectares  in this dimension

First, we need to calculate the area of the land

Convert dm to m

So, we have:

Multiply by 54000

Hence, there are 5.4 hectares

30 units^2

step-by-step explanation:

area is l × w

the length is 3

and the width is 10

3 × 10= 30 units squared