Question

ol
Find the perimeter of a rectangle of
length 21 cm and diagonal 29cm?
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Answer 1

Step-by-step explanation:

Given:-

In a rectangle

Length=21cm

breadth=29cm

To find:-

Perimeter of the rectangle

Solution:-

As we know that in a rectangle

${\boxed{Perimeter=2 (l+b)}}$

• Substitute the values

$\longmapsto$$\sf {Perimeter=2 (21+29)}$

$\longmapsto$$\sf {Perimeter=2×50}$

$\longmapsto$${\underline{\boxed{\bf {Perimeter=100cm}}}}$

Answer 2

Answer:

Given:-

• Length=21cm

• breadth=29cm

To find:-

• Perimeter of the rectangle

Formula:-

$\bf\red{\boxed{Perimeter=2 (l+b)}}$

Solution:-

=2(21+29)

=2×50

=100cm