→ Chapter : Plane ←
≡ Solution:
⇔ First, we should know the size of the square side [s]:
⇒ [tex]s^{2}=49[/tex]
⇒ [tex]s=\sqrt{49} [/tex]
⇒ [tex]s=7[/tex]
⇔ Find the perimeter of the rectangle [p]:
⇒ [tex]p=(6).(s)[/tex]
⇒ [tex]p=(6).(7)=\boxed{42}cm[/tex]
⇆ Note: Look at the picture for more clearly
