In a right angle triangle ABC right angled at B, if AB = 4 cm, BC = 3 cm, then AC =

5 cm

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10 cm

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25 cm

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Solution

The correct option is A 5 cm

According to Pythagoras theorem

$A C^{2}$ = $A B^{2}$ + $B C^{2}$

$A C^{2}$ = $4^{2}$ + $3^{2}$

= 16 + 9 = 25

$⟹$ AC = 5 cm

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