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The perimeter and the breadth of a recta...

The perimeter and the breadth of a rectangle are 44 cm and 10 cm respectively. Find its area (in `cm^(2)`) .
(A)60
(b)240
(c)120
(d)180

A

60

B

240

C

120

D

180

Text Solution

AI Generated Solution

The correct Answer is:
To find the area of the rectangle given its perimeter and breadth, we can follow these steps: ### Step 1: Write down the formulas The perimeter \( P \) of a rectangle is given by the formula: \[ P = 2L + 2B \] where \( L \) is the length and \( B \) is the breadth. ### Step 2: Substitute the known values We know the perimeter \( P = 44 \) cm and the breadth \( B = 10 \) cm. Substitute these values into the perimeter formula: \[ 44 = 2L + 2(10) \] ### Step 3: Simplify the equation Now simplify the equation: \[ 44 = 2L + 20 \] ### Step 4: Solve for the length \( L \) Subtract 20 from both sides: \[ 44 - 20 = 2L \] \[ 24 = 2L \] Now divide both sides by 2: \[ L = \frac{24}{2} = 12 \text{ cm} \] ### Step 5: Calculate the area The area \( A \) of a rectangle is given by the formula: \[ A = L \times B \] Substituting the values of \( L \) and \( B \): \[ A = 12 \times 10 = 120 \text{ cm}^2 \] ### Conclusion The area of the rectangle is \( 120 \text{ cm}^2 \). ### Answer Thus, the correct option is (C) 120. ---
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