Question

formula of area of rectangle​

Answer 1

Answer:

area of triangle - length × breadth

hope it will be helpful ✌️

Answer 2

Answer:

l*b

Step-by-step explanation:

area of rectangle = 2(area of triangle in it)      [by drawing diagonals]

                              = 2 * 1/2*b*h

                               = b*h

                                = l*b                         [as we know that b = l,h = b]