i’ll give brainiest just pls help right away. (this is a “long walk to the water packet” from the story. pls help. and if u give a link, have fun getting reported)

Which is a true statement about an exterior angle of a triangle a. it is formed by two segments that are not sides of the triangle, b. it forms a linear pair with one of the interior angles of the triangle, c. it is complementary to one of the interior angles of the triangle. d. it is formed by two segments that are sides of the triangle.

From the beginning of the day the temperature rose 15 degrees so that by 4 pm it was 87 degrees. what was the temperature at the start of the day

The triangles are similar. what is the value of x? enter your answer in the box.