Question

the length of rectangle exceeds its breadth a by 3 cm. Its area is (121+3a)sqcm then the length of rectangle id
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Answer 1

Step-by-step explanation:

Let the breadth be a cm

Then length will be (a + 3) cm

We know that,

Area of the rectangle = l × b

⟹ 121 + 3a = (a) × (a+ 3)

⟹ 121 + 3a = a² + 3a

⟹ 121 + 3a - 3a = a²

⟹ 121 = a²

⟹ a = √121

⟹ a = 11

Hence,

Breadth = a = 11 cm.

length = a + 3 = 14 cm.

Answer 2

Answer:

Lê† ß ßê †hê ßrêåІh

lêñg†h =ß+3

Ì£ lêñg†h åñÐ ßrêåІh ïñ¢rêå§êÐ ßɏ 2¢m ñêw årêå ï§ 70 §q ¢m mðrê

ï.ê., ß(ß+3)+70=(ß+2)(ß+5)

ß

2

+3ß+70=ß

2

+2ß+5ß+10

4ß=60

ß=15

l=15+3=18.

Step-by-step explanation:

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