Question

Please answer correctly !!!!!!!!!!!!!! Will mark Brianliest !!!!!!!!!!!!!!

Answer 1

just use theorem pythagoras

Answer 2

Answer:

The third side is 3√6 units.

Step-by-step explanation:

Given that this is a 90° triangle so you can apply Pythagoras Theorem :

${a}^{2} + {b}^{2} = {c}^{2}$

${a}^{2} = {c}^{2} - {b}^{2}$

${a}^{2} = {( \sqrt{90}) }^{2} - {6}^{2}$

${a}^{2} = 90 - 36$

${a}^{2} = 54$

$a = \sqrt{54} = \sqrt{9 \times 6} = 3 \sqrt{6}$