Constructing Triangles from Angles. This Secret Agent Mission can be used to practice finding the missing angle in triangles. Students must know that the sum of the angles in a triangle is 180˚. Optional - Students will practice classifying triangles by their sides (scalene triangle, equilateral triangle, isosceles triangle) and angles (acute triangle, right triangle, obtuse triangle). Printable & Digital (EDITABLE). You want to be a Secret Agent, but first, you need to complete a training mission. You have to split 30 angles, so that you get 10 sets from which you can make triangles. Be careful, as there are also bad combinations that seem good at first. If at the end, you have angles that you are not able to create good sets from, it means that you have to change something in the ones you have already completed. If you complete this training mission, you will earn the Secret Agent Badge. This resource includes: - The editable digital version in Google Slides™. - The editable PowerPoint™ version. - The printable version in PDF (color). - An example of a completed project. Click the GREEN STAR at the top of my store to follow me and be informed about my new products and sales. (or >> CLICK HERE) Check out Inspire Math Matematyka for more resources. Pi Day Earth Day Easter activities Spring & St. Patrick's Day Math&Art Projects Based Learning Inquiry Based Learning Back to School/ First Day End of the Year Activities Drag & Drop Activities Digital Escape Rooms Pixel Art Mysteries Games Scavenger Hunts Treasure Hunts Like me on Facebook for more FREEBIES!!