Δabc is a right triangle. δa'b'c' has a hypotenuse of 10 after δabc undergoes a dilation by a factor of 2. if δabc has a short leg of 5 - x and a long leg of 2x, what is the length of the short leg of δabc?

Pepe is going to spin the following spinner 800 times. the spinner is divided into equal sections.a. exactly 160 timesb. clost to 160 times but probably not exactly 160 timesc. exactly 640 timesd. close to 640 times but not probably not exactly 640 times. me

How can you construct perpendicular lines and prove theorems about perpendicular lines

Can someone tell me if this is perpendicular? !