Question

find the length of the diagonals of a rectangle whose length is 'a' unit and breadth is a b unit​

Answer 1

Answer:

Diagonal² = a² + b²

diagonal = √(a²+b²)

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Answer 2

Answer:

if we take half rectangle diagonal wise it will form a right angle triangle so we can use

Pythagoras theorem

${Hypotenuse}^{2} = {perpendicular}^{2} + {base}^{2}$

Hypotenuse here is diagonal and base is breadth and perpendicular is length

so length of diagonal is

$d = \sqrt{ {a}^{2} + {b}^{2} }$

and d represent diagonal

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