Question

please answer this one.. please dont give unnecessary answers please i have to repost​

Answer 1

Answer:

Perimeter = 210 m

Hope this helps ☃️

Answer 2

Question:

• The area of a rectangular field whose length is twice its breadth is 2450m². Find the perimeter of field.

Answer:

Given:

• Area of rectangular field = 2450m²
• Length of field is twice its breadth.

To Find:

• Perimeter of field?

Solution:

Given that length of a rectangular field is twice its breadth and area is 2450m²

Formulas related to this question:

• $\small{\red{\bf{Area~of~rectangle~=~Length~ \times~Breadth~~~••••(i)}}}$
• $\small{\bf{\red{Perimeter~of~rectangle~=~2(Length+Breadth)~~~••••(ii)}}}$

_________________

To find Perimeter of rectangular field, first of all we need to find Length and breadth of rectangular field [Consider formula]

Let suppose that breadth of rectangle is x.

∴ Length of rectangle will be 2x.

Now, we have :

• Area of rectangular field = 2450m²
• Length of rectangular field = 2x
• Breadth of rectangular field = x

$\small{\underline{\green{\bf{Considering~{1}^{st} formula}}}}$

Area of rectangular field = Length × Breadth

→ 2450 = 2x × x

→ 2450 = 2x²

→ x² = 2450/2

→ x² = 1225

→ x = √1225

→ x = 35

Therefore,

• Breadth of rectangular field = x = 35m
• Length of rectangular field = 2x = 70m

$\small{\underline{\green{\bf{Considering~{2}^{nd} formula}}}}$

Perimeter of rectangular field = 2(Length + Breadth)

→ Perimeter of rectangular field = 2(70 + 35)

→ Perimeter of rectangular field = 2 × 105

→ Perimeter of rectangular field = 210

Therefore,

• Perimeter of rectangular field = 210m