sweety253
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▶QUESTION:

The perimeter of a rectangular field is 240 m. If its length is 90 m, find:

(i) it’s breadth
(ii) it’s area.

​

Respuesta :

2m + 2b = 240

m + b = 120

m = 90

breadth = 30

90 * 30 = area

area = 2700

UFO386438

Solution:

[tex] \space[/tex]

(i) Perimeter of the rectangular field = 240 m

2(l + b) = 240 m

= > l + b = 120 m

=> 90 m + b = 120 m

= > b = 120 m – 90 m = 30 m

So, the breadth = 30 m.

[tex] \space[/tex]

(ii) Area of the rectangular field = l × b

= 90 m × 30 m

= 2700 m2

So, the required area = 2700 m2