Question

the perimeter of square field is 8 km find its area in hectares​

Answer 1

Answer:

perimeter= 8

4a = 8

a = 2km

Area of square= a×a

= 2×2=4 sq. km

1 sq.km= 100 hector

4sq.km= 400 hector

Answer 2

★Given:-

• Perimeter of square field = 8km

★To find:-

• Area in hectares.

★Solution:-

We know,

✦Perimeter of square = 4(side)

Let 's' is the side of square.

Putting values in this formula,

➜perimeter = 4s

➜8 = 4(s)

➜s = 8/4

➜s = 2km

Hence,

The length of side of square is 2km.

Using the formula,

✦Area = (side)²

Putting values,

➜Area = s²

➜Area = 2²

➜Area = 4sq.km.

Hence,

Area of the square is 4sq.km.

We know,

✦1 sq km = 100 hectares

Then 4 sq.km will be,

➜4 × 100

➜400 hectares

Therefore,

The area of square in hectares is 400 hectares.

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