Q. 364.0( 10 Votes )

In a right-angled triangle ABC, if angle B = 90°, BC = 3 cm and AC = 5 cm, then the length of side AB is
A. 3 cm

B. 4 cm

C. 5 cm

D. 6 cm

Answer :

Given: angle B = 90°, BC = 3 cm and AC = 5 cm


Formula Used/Theory:-


Pythagoras theorem:-


Base2 + Height2 = Hypotenuse2


Base2 + Height2 = Hypotenuse2


3cm2 + Height2 = 52


9 + Height2 = 25


Height2 = 25 – 9 = 16


Height = √16 = 4cm


AB = 4cm

Rate this question :

How useful is this solution?
We strive to provide quality solutions. Please rate us to serve you better.
RELATED QUESTIONS :