Question

(iv) The area of a rectangle with breadth
5 cm is 30 sq. cm. Find its length and
perimeter.​

Answer 1

Step-by-step explanation:

area = length × breadth

30 = length × 5

length = 6 cm

Perimeter = 2 ( l + b )

= 2 ( 6 + 5 )

= 2 ( 11 )

= 22 cm

#answerwithquality #BAL

Answer 2

$\mathsf{ \huge \fbox{Solution :</p><p> }}$

Given ,

Area of rectangle = 30 cm²

Breadth of rectangle = 5 cm

We know that , the area of rectangle is given by

$\fbox{ \mathsf{Area \: of \: rectangle = Length × Breadth }}$

Substitute the known values , we get

$\sf \hookrightarrow 30 = 5 \times breadth \\ \\ \sf \hookrightarrow breadth = 6 \: cm$

Hence , the breadth of rectangle is 6 cm

Now , the perimeter of rectangle is given by

$\fbox{ \mathsf{Perimeter \: of \: rectangle =2( Length + Breadth) }}$

Substitute the known values , we get

$\sf \hookrightarrow perimeter = 2(5 + 6) \\ \\ \sf \hookrightarrow perimeter = 2 \times 11 \\ \\ \sf \hookrightarrow perimeter = 22 \: cm$

Hence , the perimeter of rectangle is 22 cm