Question

The length of a rectangle is twice its breadth . If the perimeter is 90m , find the length and breadth of rectangle

Answer 1

Step-by-step explanation:

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Answer 2

➲ Gɪᴠᴇɴ :-

The length of a rectangle is twice its breadth . The perimeter is 90m.

➲ ᴛᴏ ғɪɴᴅ :-

• Length
• Breadth

➲ sᴏʟᴜᴛɪᴏɴ :-

Let length of rectangle be x m and breadth be y m

➤ According to 1st condition :-

• Length = 2 × Breadth

• x = 2y. --(1)

➤ According to 2nd condition :-

Perimeter of Rectangle = = 2(l + b) = 90m

➭ 2(l + b) = 90

➭ 2(x + y) = 90

➭ 2(2y + y) = 90. --(from-1)

➭ (2y + y) = 90/2

➭ 2y + y = 45

➭ 3y = 45

➭ y = 45/3

➭ y = 15 m

Put y = 15 in (1) , we get ,

➭ x = 2y

➭ x = 2 × 15

➭ x = 30 m

Hence,

• Length = x = 30 m
• Breadth = y = 15 m