Similar Triangles and Proportional Reasoning
30 tutor-authored questions for this Ontario curriculum expectation, ordered easiest to hardest, every one with a full worked solution. Work through all 30 with your weekly-lesson access code.
Sample: the first question, solved
Two similar triangles have a side ratio of 3:4. If the smaller triangle's side is 9cm, find the corresponding side of the larger.
📘 Worked solution
✓9×(4/3) = 12cm.
And one from the hard end
Triangle ABC is similar to triangle DEF with a scale factor of 5:2 (ABC to DEF). If triangle ABC has area 150cm², find the area of triangle DEF.
Solution shown after you try it in practice mode.
Work through all 30, easiest to hardest
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