Question

find the length and perimeter whose breadth is 8 cm and area is 80 square cm​

Answer 1

Answer:

Area of rectangle = Length \times BreadthLength×Breadth

Breadth of rectangle = 8 cm

Area of rectangle =Length \times 8Length×8

We are given that area of rectangle is 120 sq.cm.

So, Length \times 8 =120Length×8=120

Length = \frac{120}{8}Length=

8

120

Length = 15 cm

Perimeter of rectangle = 2(l+b)=2(15+8)= 46 cm

Hence The length and perimeter of the rectangle are 15 cm and 46 cm respectively.

Answer 2

Step-by-step explanation:

hii mate

area = length* breadth

80cm^2 = length * 8cm

80/8 = length

10 = length

length = 10cm