Question

a rectangle had area 460m² and breadth is 20m what is the perimeter of the rectangle ​

Answer 1

Answer:

area of rectangle = length × breadth

460 = length × 20

460/20 = length

so length = 23 m

now perimeter = 2( l + b )

2(20+23)

2(43)

86cm

Answer 2

Step-by-step explanation:

Given: Area of rectangle = 460 m²

Breadth of rectangle = 20 To find: Perimeter of rectangle = ?

Solution:

We know that,

Area of rectangle = length × breadth

$460 = l \times 20 \\ \frac{460}{20} = l \\ l = 23 \: m$

Therefore, length = 23 m & Breadth = 20 m

Perimeter of rectangle = 2(length + breadth)

$Perimeter \: of \: rectangle \: = 2(23 + 20) \\ Perimeter \: of \: rectangle \: = 2(43) \\ Perimeter \: of \: rectangle \: = 86 \: m$