This is a coloring activity that can be used for students to practice finding the missing angle in triangles. Students must know that the sum of the angles in a triangle is 180˚.
I have also included a bonus “pile on” activity where students are given a large picture and they must find all of the other missing angles in the picture. In order to be successful with this activity, students must know: that there are a total of 180˚ in every triangle, that angles that form a right angle add up to 90˚, and that angles that form a line add up to 180˚.
Answer key included.