Question

Step 1: m∠m + m∠n + m∠p = 180 degrees (sum of angles of a triangle)
Step 2: m∠p + m∠o = 180 degrees (adjacent supplementary angles)
Step 3: Therefore, m∠m + m∠n + m∠o = m∠o + m∠p
Step 4: So, m∠m + m∠n = m∠p

In which step did the student first make a mistake and how can it be corrected?

Step 1; it should be m∠m + m∠n + m∠o = 180 degrees (sum of angles in a triangle)
Step 1; it should be m∠m + m∠n + m∠o = 90 degrees (adjacent angles)
Step 2; it should be m∠o + m∠p = 180 degrees (alternate exterior angles)
Step 2; m∠p − m∠o = 90 degrees (alternate interior angles)

Answer 1

heres the pic

Answer 2

Step 1 is incorrect. Since we are stating `the sum of angles of a triangle` we would include the angles `inside` of the triangle which would be `angle N + angle O + angle M = 180` since the sum of the angles inside a triangle equal 180 degrees.

Answer 3

OMG THANKS SO MUCH I WISH I COULD MEADL BUT IM NEW SORRY