Question

The area of triangle is‟ xy‟ where‟ x‟ is length and „y‟ is breadth. If the length of rectangleis increased by 5 units and breadth is decreased by 3 units, the new area of rectangle will be

Answer 1

Answer:

$\bf \: length = x \\ \\ \bf \: breadth = y \\ \\ \bf \: therefore \: area = xy \\ \\ \bf \: new \: length = x + 5 \\ \\ \bf \: new \: breadth = y - 3 \\ \\ \bf \: now \: area = \boxed{ \mathfrak{(x + 5)(y - 3) = xy + 5y - 3x - 15}}$

Answer 2

Answer:

length of rectangle= x

breadth of rectangle=y

area of rectangle=xy

If,

length of rectangle=(x+5)

breadth of rectangle=(y-3)

then,

new area of rectangle= length ×breadth

= (x + 5)(y -3)

=xy - 3x + 5y- 15