Irrational due to the negative sign
The cows of Argentina needs an approximate area of 4200 m² for grazing, and there is a total of 4500 cows.
And we are asked to find the total area of their grazing but in hectares. So, we can write:

Then, for 4500 cows:


We know that, 1 hectares = 10000 m² = 10⁴ m²
Then let the area of the field be x in hectares:


Then, putting them in proportion, We will get:


So, the total area in hectares = <u>1</u><u>8</u><u>9</u><u>0</u><u> </u><u>hectares</u><u>.</u>
And we are done !!
#CarryOnLearning
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Answer:
The sum of the measures of the angles in a triangle is equal to 180 degree.
In triangle FGH;

or

Substitute the given values from the given figure we have;


Simplify:

Given that:
Using Cosine ratio:

In a given figure:
Base = GH = x and Hypotenuse = FH = y = 80 cm
Then;

or
cm
Therefore, the value of :

x = 43.57 cm
y = 80 cm
-x+4>-3x-4
+x +x
---------------------
4>-3x-4
+4 +4
----------------
8>-3x
/3 /3
----------------
8>2.7
x=2.7
Hope it helped!