Answer: (a) 11.8
(b) 13
Step-by-step explanation:
[tex]\\[/tex]Since George wants to put a string of lights around , it means we will have to consider the perimeter of the shape.
[tex]\\[/tex]Perimeter of a rectangle is given by :
[tex]\\[/tex]P = 2( L+B)
[tex]\\[/tex]P = 2 ( 2.5 + 3.4)
[tex]\\[/tex]P = 2 ( 5.9)
[tex]\\[/tex]P = 11.8 meters
[tex]\\[/tex](b) Since he wants to put an addition to his wooden deck that is 0.6 meters longer , then the perimeter will be the perimeter of the first shape + 2(0.6). We used 2(0.6) because the two lengths of the rectangle must be considered
[tex]\\[/tex]Therefore, we have
[tex]\\[/tex]P = 11.8 meters + 2(0.6)
[tex]\\[/tex] = 11. 8 + 1.2
[tex]\\[/tex] = 13 meters
[tex]\\[/tex]Therefore George needs 13 meters length of light