Draw a rectangle draw a rectangle with the parties of 7 cm and 3 cm find its area and perimeter

267
TO FIND THE AREA IT IS NECESSARY TO INCREASE LENGTH BY WIDTH 7Х3=21. QUARTER SEE PERIMETR-ETO THE SUM OF LENGTHS OF ALL PARTIES 7+7+3+3 = 21 CM OR 7Х2+3Х2=21 (CM)
314
Answer add