Question

$\Delta$ABC is a right angled triangle. Find the length of AC. Given that BC = 3 units; AB = 4 units.

• A. 11 units
• B. 7 units
• C. 4 units
• D. 5 units

Answer 1

The correct option is D

5 units

In $\Delta$ABC,

$A{B}^2$ + $B{C}^2$ = $A{C}^2$; [By Pythagoras theorem]

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

$A{C}^2=25$

AC = 5 units