Use the Pythagorean theorem:

c - a hypotenuse
a, b - legs
We have: a = 9 and c = 12. Substitute:

<em>subtract 81 from both sides</em>

A Pythagorean triple consists of three positive integers a, b and c, such that
.
is not positive integer.
<h3>The sides of the triangle do not form a pythagorean triple.</h3>
Answer: 350km/h,349
Step-by-step explanation:Find the exact value using tringometric identities
Answer:
(1,-2)
Step-by-step explanation:
(x,y)transforms(y,-x)at about 270°.