Can you please help me

1. a right triangle is graphed on a coordinate plane. find the length of the hypotenuse. round your answer to the nearest tenth. 2. use the angle relationship in the figure below to solve for the value of x. assume that lines a and b are parallel and line c is a transversal.

Which math sentence can be used to determine if the triangle is a right triangle?

Write the sine and cosine values of a, b, respectively, in the figure for (1) and (2) + explanation.