Help pleaz

90 degrees.

Step-by-step explanation:

180-60-60 is 60 degrees. The 2 sides of the angle are equal as both sides notated with two X's.

That being said 60/2=30 leaving us with a triangle with 60 and 30 degree angles. All triangles are 180 degrees in total, making that angle 90 degrees.

30+60+90=180.

linear pair postulates

the correct option is 2.

step-by-step explanation:

according to the given information triangle abc is a right angle triangle with right angle at a. segment ab is 5 and segment ac is 7. point d is on segment bc and angles adb and adc are right angles.

it is given that triangles abd, cad, and cba are similar.

two triangles are similar if their corresponding sides are proportional.

in triangle cba, using pythagoras theorem

                      )

triangle abd and cba are similar,

                            (2)

triangle cad and cba are similar,

                      )

using (1), (2) and (3), we get

hence proved.

therefore option 2 is correct.