Answer:
Step-by-step explanation:
Area of a rectangle ( A ) = 36 cm²
Width of a rectangle ( w ) = 3 cm
:
Perimeter of a rectangle ( P ) = ?
<u>First</u><u>,</u><u> </u><u>finding</u><u> </u><u>the </u><u>length</u><u> </u><u>of</u><u> </u><u>a</u><u> </u><u>rectangle</u><u> </u><u>(</u><u> </u><u>l</u><u> </u><u>)</u><u> </u><u>:</u>
Length of a rectangle = 12 cm
<u>Now</u><u>,</u><u> </u><u>finding</u><u> </u><u>the</u><u> </u><u>perimeter </u><u>of </u><u>a</u><u> </u><u>rectangle</u><u> </u><u>having</u><u> </u><u>length</u><u> </u><u>of</u><u> </u><u>1</u><u>2</u><u> </u><u>cm</u><u> </u><u>and</u><u> </u><u>width</u><u> </u><u>of</u><u> </u><u>3</u><u> </u><u>cm</u>
Perimeter of a rectangle = 30 cm
Hope I helped!
Best regards! :D