Answer:
Length of lights should he buy = 2280 cm
Explanation:
Sid has a rectangular wooden deck that measures 348 cm x 792 cm
Length of wooden deck = 792 cm
Width of wooden deck = 348 cm
He want to put a string of lights around, which means he need to put light along perimeter of rectangular wooden deck.
Perimeter of rectangular wooden deck = 2 x ( 348 + 792 ) = 2280 cm
Length of lights should he buy = 2280 cm