Question

The length and breadth of the screen of an LED-TV are 24 inches and 18 inches. Find the length of its diagonal.i want step by step answer ​

Answer 1

Given :-

• Length of screen of a LED-TV is 24 inches  
• Breadth of screen of a LED-TV is 18 inches  

To Find :-

• Length of diagonal of the LED-TV screen  

Solution :-

~Here, we’re given the length and breadth of the screen of an LED-TV are 24 inches and 18 inches and we need to find the diagonal of that LED-TV. We can easily find the diagonal by putting the values in it’s formula  

As we know that ,

✬  d = √(l² + b²)

Where,  

• l is length  
• b is breadth  
• d is diagonal  

Finding the diagonal :-

⇒ d = √(l² + w²)  

⟶ d = √(24² + 18²)

⟶ d = √(576 + 324)

⟶ d = √(900)

⟶ d = 30  

Hence,  

• Diagonal of that LED-TV is 30 inches

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More to know :-

→ Perimeter of a rectangle = 2( l + b )  

→ Area of a rectangle = lb

→ Length = Area/Breadth

→ Breadth = Area/Length  

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Answer 2

•Given-

• Length of the LED - TV is 24 inches

• Breath of the LED - TV is 18 inches

•To find-

• Length of diagonal of the LED - TV screen

•Solution-

~In this query, the length and the breadth of a LED - TV are 24 and 18 inches. We have to find the length of it's diagonal.

☆We know that-

$\implies \rm d = \sqrt{( {l}^{2} + {b}^{2}) }$

~Where,

• d = diagonal
• l = length
• b = breadth

•Finding the diagonal

$\implies \rm d = \sqrt{( {l}^{2} + {b}^{2}) }$

$\implies \rm d = \sqrt{( {24}^{2} + {18}^{2} ) }$

$\implies \rm d = \sqrt{(576 + 394)}$

$\implies \rm d = \sqrt{(900)}$

$\implies \rm d = 30$

Hence,

The length of the diagonal is 30 inches.

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☆More☆

Perimeter of a rectangle = 2( l + b)

Area of a rectangle = l×b

Length = Area/Breath

Breath = Area/Length