Question

The length of a rectangle exceeds its breadth by 2 cm and its perimeter is 36 cm.Find the length and breadth of the rectangle.​

Answer 1

Answer:

Answer is b is 8cm and l is 10cm

Step-by-step explanation:

Given, l = 2+b

P = 36 cm

Now, P = 2(l+b)

36 = 2(2+b+b)

36 = 2(2+2b)

36 = 4+4b

4b = 36-4

4b = 32

b = 32/4

b = 8cm

Now , l = 2+b

l = 2+8

l = 10cm

Hence, b = 8cm , l = 10cm

Hope it helps...

Answer 2

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Length of Rectangle = (3x - 7) cm

Breadth of Rectangle = (4x + 8) cm

Area = ?

Solution :)

Formula Used :-

Area of Rectangle = Length × Breadth

So, length and breadth are given in this question and we have to find the area

So, solving further

→ (3x - 7) × (4x + 8)

→ (3x - 7)(4x + 8)

→ 3x × 4x + 3x × 8 - 7 × 4x - 7 × 8

→ 12x² + 24x -28x - 56

→ 12x² -4x -56

So, the area is 12x² -4x -56