Question

1. The length of the rectangle is 2 r - 3 and its width is equal to r - 1. Find the area of the
rectangle. 2n?-50 +3​

Answer 1

Answer:

Given , Length = 2r-3

breadth = r-1

Area of a rectangle = Length X Breadth

                                = (2r-3) x (r-1)

                                = $2r^{2} -2r -3r +3$

 Area of a rectangle =  $2r^{2} -5r +3$

Answer 2

Please note that the question is incomplete if there is no perimeter given. Do we have to give the answer in the context of r? If yes, this is the explanation with answer.

Area = l x b

= (2r -3) x (r - 1)

= 2$r^{2}$ - 2r - 3r + 3

= 2$r^{2}$  - 5r + 3

= 2$r^{2}$ + r - 6r +3

= r(2r+1) - 3(2r - 1)