Question

The ratio of areas of two squares is 9:16. If the area of the smaller square be 144 cm², find the perimeter of the bigger square.​

Answer 1

Answer:

$9k = 144 \\ k = 16 \\ area\: of \: bigger \: square \\ = 16 \times 16 = 256 \\ side \: of \: bigger \: square \: = 16 \\ perimeter \: of \: bigger \: square \\ 4 \times 16 = 64$