Question

The length of a rectangular
plot is twice its breath if the
perimeter of the plot be
900 m find its area
@ 45000 m²
2 40000 m
3 3oooo m
4 6000 m​

Answer 1

Answer:

@ 45000

Step-by-step explanation:

let breadth be X and length be 2 X.

p=2(l+b)

900=2×3x

X=150

2x=300

so , a= l×b = 150×300

=45000

Answer 2

Answer:

(a) 45000

Step-by-step explanation:

let breadth of rectangle be x m.

then, length= 2x

perimeter = 2(l+b)

=2(2x+x)

=2*3x

=6x

but, perimeter of rectangle is given then,

6x=900

x=900/6

=150m

so, length (x) = 150

breadth (2x) = 2*150 = 300

therefore,area of a rectangle = l*b

=300*150

=45000 meter square