Question

when 4 is is subtracted from length × cm and 6 is subtracted from length y cm of a rectangle, find equation for its perimeter

Answer 1

Answer:

If the length and breadth of the rectangle is x cm and y cm respectively and if 4 and 6 are subtracted from length and breadth respectively, then the equation for its perimeter is 2x + 2y -20 cm

Step-by-step explanation:

Given

Length = x cm

When 4 is subtracted, length = x - 4 cm

Breadth = y cm

When 6 is subtracted, breadth = y -6

So perimeter = 2( length + breadth )

= 2 ( x-4+y-6)

= 2( x+y-10)

= 2x +2y -20

So, the perimeter is 2x +2y -20 cm

Answer 2

Answer:

Equation for its perimeter is 2X+2Y-20 cm

Step-by-step explanation:

Given : 4 is is subtracted from length X cm

            The length = X-4 cm

           6 is subtracted from length Y cm

            Th breadth = Y-6 cm

Solution :The perimeter of rectangle = 2 × (Length + Breadth )

                                                            = 2 × (X-4 + Y-6)

                                                            = 2 × ( X+Y- 10) cm

                                                            = 2X+2Y-20