Question

Solve this fast it's important​

Answer 1

Answer:

x = 5 and y = 12

Step-by-step explanation:

Pythagoras Theorem = a² + b² = c²

3² + 4² = x²

⇒ x² = 9 + 16

⇒ x = √25

⇒ x = 5

y² + 5² = 13²

⇒ y² = 169 - 25

⇒ y =  √144

⇒ y = 12

Thus x = 5 and y = 12

Answer 2

Answer:

5 cm , 12cm Respectively

Step-by-step explanation:

using Pythagoras theorem

$AC² = 4² + 3² \\ AC = \sqrt{16 + 9} \\ = > AC = \sqrt{25} \\ = > \boxed{ AC = 5cm = xcm}$

Again using Pythagoras theorem

$AD ^{2} = {13}^{2} - {5}^{2} \\ = > AD ^{2} = 169 - 25 \\ = > AD ^{2} = 144 \\ = > AD = \sqrt{144} \\ = > \boxed{AD = 12cm \: = ycm}$

Hope it Helps you !