Question

ABC is right angled at A. If AB = 24 cm and AC = 7 cm then BC =
(a) 31 cm
(b) 17 cm
(c) 25 cm
(d) 28 cm​

Answer 1

Answer:

c) 25 cm

Step-by-step explanation:

it is said that it is right angled at A which means

(AC)²+(AB)²=(CB)²

{AC=7 AB=24 AND THERE FORE WE HAVE TO FIND THE HYPOTENUSE}

(7)²+(24)²=(CB)²

49+576= (CB)²

625=(CB)²

CB=√625

CB=25

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