Question

The rectangle
is made up of 12 congruent (same size) squares. Find the perimeter of the rectangle if the area of the rectangle is equal to 432 square cm.

Answer 1

Answer:

perimeter of rectangle = 156 cm

Step-by-step explanation:

given :- area of rectangle = 432 square cm

             12 square attached to make a rectangle

area of rectangle = area of 12 square

432 = 12 (side)^2

432/12 = (side)^2

(side)^2 = 36

side = √36

side = 6

side of a square = 6 cm

therefore breath of a rectangle = 6 cm &

               length = 6 × 12 = 72 cm

perimeter of a rectangle = 2(l+b)

                                          = 2(6+72)

                                        = 2(78)

                                          =156

perimeter of a rectangle = 156 cm