Question

Each side of a square is 6 cm long. A rectangle with a width of 3 cm has the same area as the square. Find the number of centimeters in the perimeter of the rectangle.

Answer 1

Area of square = side²

Area of square = 6² = 36cm²

_________________

Area of square = Area of rectangle

So, area of rectangle = 36cm²

Length × Breadth = 36

Length × 3 = 36

Length = 36/3

Length = 12cm

Perimeter = 2( l + b )

P = 2(3+12)

P = 2(15)

Perimeter = 30cm

Answer 2

Answer:

Rectangle

Solve for perimeter

P=18cm

l Length : 6cm

w Width : 3cm

Solution

P=2(l+w)=2·(6+3)=18cm