Question

find the length of the rectangular field whose perimeter is 90 meters and breadth is 20 meters​

Answer 1

Answer:

Solution:

Let Length = l

Breadth = 20 m

Perimeter of a rectangle = 2(l+b)

90 = 2(l+20)

45 = l+20

I = 25 m

Length is 25m

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Answer 2

find the length of the rectangular field whose perimeter is 90 meters and breadth is 20 meters

Solution-

Length => ?

Breadth => 20m

Perimeter => 90m

$\boxed{ \underline \bold \blue{perimeter = > 2(l + b)}} \\ \\ 90m = > 2(l + 20) \\ \\ \frac{90m}{2} = > l + 20 \\ \\ 45m = > l + 20m \\ \\ 45m - 20m = > l \\ \\ \boxed{ \underline \bold \red{length = > 25m}}$

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Important information .

• ✨ Perimeter of square => 4 x side
• ✨Area of square => side x side
• ✨ Area of rectangle => Length x Breadth
• ✨ Perimeter of rectangle => 2(l+b)
• ✨Area of circle = πr²

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Hope it's helps you ☺️