Answer:
Step-by-step explanation:
This is a basic right angle problem relating to Pythagoras theorem as one approach.
we know.
[tex]a^2+b^2=y^2[/tex]
(letting the hypotenuse of the left triangle as y)
then,
[tex]7^2+8^2=y^2\\y=\sqrt{113}[/tex](neglecting negative root)
now since you know the value of y use the same formula to find the value of x. Keep in mind the identification of opposite , adjacent and hypotenuse sides.
