Triangle Activity

Some of the screens/problems came from the following activities. https://teacher.desmos.com/activitybuilder/custom/59e486a12c33b37ac3a674a0 https://teacher.desmos.com/activitybuilder/custom/5afefc43e0b24e0a7d43405d https://teacher.desmos.com/activitybuilder/custom/57b9d60dce9904f7055592b8

By Greta Wichmann