If I pull the fire alarm at school and say emergency meeting.. is that legal?

That is not legal

Explanation:

You would get in a lot of trouble

The school district police chief said that while pulling a fire alarm in a non-emergency is a class 'A' misdemeanor, doing so in a school elevates the charge to a state jail felony.

if triangle abc is congruent to triangle def, their interior angles are congruent, because congruent parts of congruent triangles are congruent (cpctc).

that means ∠d is congruent to ∠a; ∠d is equal to 8x - 2.

interior angles of all triangles add to equal 180 degrees, so you can set the sum of these interior angle values equal to 180 and solve for x.

180 = (8x - 2) + 22 + 72

180 = 8x - 2 + 22 + 72

180 = 8x + 92

88 = 8x

11 = x

x = 11