Question

In the given figure, find the length of the hypotenuse. (all measurements are in $cm$)

• A. 13

Answer 1

The correct option is A 13
Using the Pythagorean Theorem, for triangle $ABC$
$A{B}^2=A{C}^2+B{C}^2$

Hence,
$\Rightarrow A{B}^2=A{C}^2+B{C}^2$
$\Rightarrow A{B}^2=5^2+{12}^2$
$\Rightarrow A{B}^2=25+144$
$\Rightarrow A{B}^2=169$
$\Rightarrow AB=\sqrt{169}=13$ cm