Question

In a right angle triangle ABC right angled at B, if AB = 4 cm, BC = 3 cm, then find the length of side AC.

• A. 5 cm
• B. 1 cm
• C. 10 cm
• D. 25 cm

Answer 1

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