1.

The perimeter of a rectangle is 70m. If it's width three fourth of its length. Find its area.

Answer» HII friend,

LET the Length of RECTANGLE be X.

Then the breadth of rectangle = 3X/4

Perimeter of rectangle = 2( L + B)

70 = 2 (X + 3X/4)

70 = 2( 4X + 3X/4)

70 = 4X+3X/2

4X +3X = 140

7X = 140

X = 140/7

X = 20 m

Length of rectangle = X = 20 m

Breadth of rectangle = 3X/4 = 3 × 20/4 = 60/4 = 15 m

Therefore,

Area of rectangle = Length × Breadth

=> 20 × 15 = 300 m².


HOPE IT WILL HELP YOU..... :-)


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