Question

In a triangle ABC, right angled at B, if AB = 3 cm, BC = 4 cm, then the value of AC (in cm) is .

• A. 3
• B. 4
• C. 2
• D. 5

Answer 1

The correct option is D 5

By Pythagoras theorem we know that

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

So, $A{C}^2$= $3^2$ + $4^2$ = 9 + 16 = 25

So, AC = 5