Why Lesson Planet?
In this parts of similar triangles worksheet, 10th graders solve 6 different problems related to determining the value of various parts of similar triangles. First, they find the value of x in the 2 figures shown. Then, students find the value of x in the next 2 figures and name the type of angle formed. They also determine whether the 2 triangles on the bottom of the sheet are congruent given each measure.