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Area of a rectangle = l x bso, 7x3=21 area=21 perimeter of a rectangle = 2(l+b) 2(7+3) = 2x10 =20 this is your answer by kitty kat amrita
width = (x + 4) cm length = [(x + 4) + (x + 7)] cm Rectangle Perimeter = 2[(x + 4) + (x + 4 + x + 7)] cm Rectangle Perimeter = 2[(x + x + x) + (4 + 4 + 7)] cm Rectangle Perimeter = 2(3x + 15) cm Rectangle Perimeter = (6x + 30) cm
The perimeter is the distance around, the sum of the sides. A 5 x 7 or a 4 x 8 rectangle has a perimeter of 24.
A rectangle 10.5 x 3 will have a perimeter of 27 in.
21 x 2 has greatest perimeter