Question

the area of a rectangle is 102sqm.If it's length is 17cm what it's perimeter ​

Answer 1

Given : Area of a rectangle = 102 cm²

Length = 17cm


To find : Perimeter


Solution :

First we will find the breadth by using the formula -

Area of rectangle = length × breadth

☛ 102 = 17 × breadth

☛ breadth = $\dfrac{102}{17}$

∴ $\boxed{\text{Breadth\:=\:6\:cm}}$


Now, perimeter. To find perimeter of the rectangle, we will use the formula -

Perimeter = 2(length + breadth)

☛ Perimeter = 2(17 + 6)

☛ Permieter = 2(23)

∴ $\boxed{\boxed{\text{Perimeter\:=\:46\:cm}}}$

Answer 2

Area=102sqcm

l=17 cm

Area of rectangle=l×b

102=17×b

102/17=b

b=6cm

Perimeter of rectangle=2(l+b)

=2(17+6)

=46cml