Question

A park of length 30cm and breadth 20cm ,inside which 2cm broad intersecting road is there. Find the area of the road. Refer the following figure​

Answer 1

given the length of the road is 2cm

the area of the road will be 4×2=8cm^2

hope it helps you ✌

Answer 2

Solution

Given :-

• Length of Rectangular park = 30 cm
• Breadth of rectangular park = 20 cm
• 2 cm road in aide of park in around .

Find :-

• Area of road .

Explantion

Using Formula

$\boxed{\tt{\red{\:Area_{Rectangular\:park}\:=\:(Length\times Breadth)}}}$

So, First Calculate Area,

==> Area of rectangular park = 30 × 20

==> Area of rectangular park = 600 cm²

Here, 2 cm road around the park .

If, we take 2 cm around whole park , its create a new Rectangular park.

Where,

• Length of new rectangular park = (30-2) = 28 cm
• Breadth of new rectangular park = (20-2) = 18 cm

So, Calculate new area of Rectangular park.

==> Area of new Rectangular park = 28 × 18

==> Area of new Rectangular park = 504 cm².

Now, we calculate area of road .

For this,

★ Area of road = Area of rectangular park - Area of new rectangular park

==> Area of road = 600 - 504

==> Area of road = 96 cm².

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Hence

• Area of road will be = 96 cm²

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