The perimeter of a square is 48 cm. The area of a rectangle is 4 cm sq. less than the area of the given square. If the length of the rectangle is 14 cm, find its breadth.
Answers
Answered by
1
Answer:
10 cm
Step-by-step explanation:
perimeter of square = 48
4a = 48
a = 12
a^2 = 12^2
area of square = 144
area of rectangle = 144-4 = 140
breadth = 140/14
b = 10 cm
Answered by
1
Answer
56 cm
Step by Step explanation
Perimeter of square = 48 cm
4a = 48
a = 48 ÷ 4
a = 12
area of square = l × b
= 12 × 12
= 144
Area of the square = 144
area of rectangle = 144 - 4 = 140
Area of the rectangle = 140
area of rectangle = 2 (l + b)
140 = 2 (14 + b )
140 ÷ 2 = 14 + b
70 - 14 = b
56 = b
breath of the rectangle = 56 cm
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