A square tile of area 225 cm2 is cut into two equal rectangular tiles. What will be the perimeter of each new tile?
Show answer & explanation
Correct answer: D
Explanation
The correct answer is option 4 i.e. 45 cm.
Each side of the square tile = √225 = 15 cm
Two rectangles: 15 cm long, 15/2 = 7.5 cm wide each
Perimeter of each rectange tile = 2(15 + 7.5) = 2 × 22.5 = 45 cm