Answer:
A
Explanation:
let the width be w then length = 2w - 6
perimeter (P) is calculated as
2(length + width)
given P = 60 , then
2(2w - 6 + w) = 60 ( divide both sides by 2 )
2w - 6 + w = 30
3w - 6 = 30 ( add 6 to both sides )
3w = 36 ( divide both sides by 3 )
w = 12 cm
and length = 2w - 6 = 2(12) - 6 = 24 - 6 = 18 cm
area of rectangle (A) is calculated as
A = length × width = 18 × 12 = 216 cm²