Question

if the length and breadth a rectangular field are 10 cm and 20 cm respectively,find the length of diagonal.​

Answer 1

GIVEN :

Length of the Rectangle = 10cm

Width of the Rectangle = 20cm

Length of the diagonal of Rectangle = ?

We know that,

Length of diagonal = √(l² + b²)

According to the problem,

Length of diagonal :

= √(10² + 20²)

= √(100 + 400)

= √500

= 22.36

Therefore, the length of diagonal is 22.36cm.

Answer 2

• The length and breadth a rectangular field are 10 cm and 20 cm.

Length (l) = 10cm

Breadth (b) = 20cm

• We have to find the length of it's diagonal.

____________________________

Length of diagonal = $\sqrt{ {length}^{2} \: + \: {breadth}^{2} }$

Put the known the values in above formula.

=> $\sqrt{( {10)}^{2} \: + \: {(20)}^{2} }$

=> $\sqrt{100 \: + \: 400}$

=> $\sqrt{500}$

=> 22.360

=> 22.36 cm

_____________________________

Length of the diagonal of the rectangle is 22.36 cm

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