Question

Adjacent sides of a rectangle are 12cm and 5cm then the length of its diagonal is _______ cm​

Answer 1

Rectangle

Solve for diagonal

d=13cm

l Length 12cm

w Width 5 cm

Solution

d=w²+l²=5²+12²=13cm

hope it will help you ❄️

Answer 2

GivEn :

• Sides of the rectangle are 12cm and 5cm.

To find :

• The length of the diagonal?

Solution :

☯ Let's consider ABCD is a rectangle.

★ According to the Question:

• AB² + BC² = CA²

As we know that,

✮ Pythagoras theorem!

⠀⠀━━━━━━━━━━━━━━━━━━━━━⠀⠀

Therefore,

➻ CA² = AB² + BC²

➻ CA² = (5)² + (12)²

➻ CA² = 25 + 144

➻ CA² = 169

➻ √CA = √169

➻ CA = 13cm

∴ Hence, The length of its Diagonal is 13cm.

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✮ More to know:

• Area of rectangle = length × breadth
• Diagonal of rectangle = √(length)² + (breadth)²
• Area of square = side × side
• Perimeter of square = 4 × side
• Diagonal of rectangle = √2 × side