Question

The perimeter of a square is 48 cm. The area
of a rectangle is 4 cm² less than the area of the
square. If length of the rectangle is 14 cm, then
its perimeter is
(a) 24 cm
(b) 48 cm
(c) 50 cm
(d) 54 cm​

Answer 1

Answer:

Step-by-step explanation:

Hey mate here is your answer:

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→Perimeter of square = 48cm

→Side of square = 48/4 = 12cm ,

→Area of square = side x side = 12^2 = 144 sq.cm ,

→Area of rectangle = area of square - 4  cm² = 144 - 4 = 140 sq.cm ,

→Length = 14 cm ,

→So, breadth = area/length = 140/14 = 10 cm ,

→So, perimeter = 2(10 + 14) = 2(24) = 48 cm.

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Hope it helps you.

Answer 2

Answer:

perimeter of a square= 48

4 x side=48

side=48/4

side=12

Area of square = s x s

=12 x 12

= 144

Area of rectangle= Area of square - 4

l x b = 144 - 4

= 140

since, l = 14

b = 140/14

b = 10

perimeter of rectangle = 2(l + b)

= 2(14 + 10)

=2(24) = 48

Perimeter of rectangle is 48 and the option is b