Question

Length and breath of a rectangle shape ground are 43 and 21.5m how many rounds one should make along its sides to run 1km

Answer 1

Answer:

One should make 7.75 rounds around the ground to cover 1 km.

Step-by-step explanation:

Given,

  Length of the ground = 43 m

  Breadth of the ground = 21.5 m

We know, perimeter of the rectangular shaped body = 2( length + breadth )

∴ Perimeter of the ground = 2( 43m + 21.5 m )

= >  Perimeter of the ground = 2( 64.5 m )

= >  Perimeter of the ground = 129 m

According to the question, one have to cover 1 km along the sides of the ground.

On observing, we get that the distance covered by him in one round is the perimeter of the ground.

So,

= >  Distance covered in 1 round = perimeter of the rectangle

= >  Distance covered in 1 round = 129 m

= >  129 m ⇒ 1 round

= >  1 m ⇒ 1 / 129 round

= >  1000 m ⇒ 1 / 129 x 1000 rounds

= >  1 km = 7.75 rounds

Answer 2

Answer:7.75 rounds

Step-by-step explanation:

Perimeter (boundary)=2 (length + breadth)

= 2 (43+21.5)

=129 metre

To cover 1 km(1000 m),

1000÷129=7.75 rounds around rectangular land