Question

3. The area of a rectangle is 56 sq. cm. If the breadth is 7 cm , find the perimeter of the
rectangle.​

Answer 1

Answer:

30 cm

Step-by-step explanation:

breadth = 7 cm

let the length of rectangle be L

area of rectangle = 56 sq. cm

area of rectangle = length × breadth

56 sq. cm = L × 7 cm

56/7 = L

8 cm = L

therefore length of rectangle = 8 cm

perimeter of rectangle = 2(length + breadth)

                                      = 2 (8 cm + 7 cm)

                                      = 2 (15 cm)

                                      = 30 cm

Therefore perimeter of the rectangle is 30 cm

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