Question

the four sides of a park are 1.872hm,1.875hm,1.881hm,1.697gmail.a boy runs round the park twice on a morning exercise.what distance does he run

Answer 1

The four sides are given as 1.872hm,1.875hm,1.881hm and 1.697hm
The sides in metre are 18.72m , 18.75m , 18.81m and 16.96 m
Perimeter = sum of all sides
= 18.72+18.75+18.81+16.97
73.25
And twice of it = 2× 73.25 = 146.5
Thus ,the distamce travelled by the boy is 146.5 m

Answer 2

First of all find it's perimeter :

Given sides of the quadrilateral = 1.872 hm , 1.875 hm , 1.881 hm , 1.697 hm

Perimeter = Sum of all sides .
= 1.872 + 1.875 + 1.881 + 1.697 hm
= 7.325 hm
Now ,
According to question ,
The boy runs around the park twice ,

It means twice of the perimeter ,

2× 7.325 hm
= 14.65 hm

Converting it into Km :

$\frac{14.65}{10} = 1.465 \: km \:$

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