Math, asked by ishika2011pandey, 5 months ago

w EXERCISE 11.12
1. A square and a rectangular field has the same perimeters. The dimensions of rectangular field are
120 m x 90 m. Find out which field has the greater area ​

Answers

Answered by krish6163
0

Step-by-step explanation:

given,

dimensions of rectangular is 120 and 90

and the perimeters of rectangle and square are same.

RTF: which has the greatest area.

perimeter of rectangle=2x(l+b)

2x(120+90)

2x210

420

perimeter of circle=4a=420. (because they both have same perimeters)

a=420/4

a=105

area of rectangle=lxb

120x90

=10800

area of Square=a²

105x105

=11025

so the square has the greatest amount of area.

Answered by jaganjyoti
2

Step-by-step explanation:

according to question

sq. and rec. have same perimeters

dimension of rectangle field=120×90

= perimeter of sq.= perimeter of rectangle

=4×side=2(l+b)

= 4×a= 2(120+90)

= 4a=2×210

=a=2×210/4

=a=105

hence each side of sq. is of 105m each

= area of sq=(a)²

=(105)²=11,025m² ans

area of rectangle=120×90=10,800m²ans

hence area of square field have larger area

HOPE THIS HELPS YOU.....

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