Question

The rectangle is greater than its breadth by 4cm and it's perimeter is 20cm the length and breadth are_​

Answer 1

Answer:

Perimeter given = 20 cm

Breadth Given = 4 cm

Length given = let’s consider it as variable x

2( length + breadth ) = perimeter of rectangle

2( x + 4 ) = 20 cm

2x + 8. = 20 cm

2x = 20 - 8 (transposition)

2x = 12 cm

2x/2 = 12/2

x = 6 cm (breadth)

Therefore length = 4cm and breadth = 6 cm

Hence area of rectangle = length x breadth

(A) = 4 x 6

(A) = 24 cm

Therefore breadth = 6cm; Area = 24 cm

Step-by-step explanation:

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