Question

Bonsoir je ne comprens pas le devoir qui peut m'expliquer, A) La surface d'une cour carrée est de 100 m2. Quelle est la longueur d'un de ses côtés? B) La surface d'un basin carré est de 225 m2. Quelle est la logueur de ses côtés?

Answer 1

Answer:

A) l = 10m

B) l = 15m

Step-by-step explanation:

A) The area of a square courtyard  is 100m2. In order to calculate the length of one side of the courtyard you use the formula for the area of a square:

$l^2=100m^2\\\\l=\sqrt{100m^2}=10m$

Then, one side of the courtyard has a length of 10m.

B) The are of the second courtyard is 225m^2. You use the same procedure of the previous point:

$l^2=225m^2\\\\l=\sqrt{225m^2}=15m$

The length of one side is 15m