Medium
If △ABC ~ △PQR and the ratio of corresponding sides is 2:3, what is the ratio of their areas?
Explanation
Explanation
For similar triangles, the ratio of areas equals the square of the ratio of corresponding sides. So if sides are in ratio 2:3, areas are in ratio 2²:3² = 4:9.
PRO TIP
Re-check your working by substituting the answer back into the original question.