I'm not sure if the first and last questions are correct or not. Sorry for my crappy writing. The other two I'm confused about because I think I set the problem up wrong. Please check and help with the others. Thanks.

Guest Oct 15, 2019

#1**+2 **

First one

We have a 45 - 45 - 90 right triangle

The sides opposite the 45° angles are equal

Therefore.....2√10 = √40 = x

Using the Pythagorean Theorem

√ [ ( √40)^2 + (√40)^2 ] = √ [40 + 40] = √80 = 4√5 = y

CPhill Oct 15, 2019

#2**+2 **

Second one

We have a 30 - 60 - 90 right triangle

y is opposite the 30° angle ....its length is 30/√3

x is opposite the 90° angle....it has twice the length of x = 60/√3

CPhill Oct 15, 2019