Triangle Similarity

• What is the similarity notation for triangles ABC and DEF if they are similar?

  $\triangle ABC \sim \triangle DEF$
• Steps to check if two triangles are similar using the SSS criterion

  1️⃣ Identify Corresponding Sides

  2️⃣ Calculate Ratios

  3️⃣ Compare Ratios
• What is the measure of angle R in triangle RST if it is equal to angle U in triangle UVW and $\angle U =$$70^\circ$?


  $\angle R =$$70^\circ$
• What is the similarity ratio between triangles ABC and DEF if their corresponding sides have ratios of $\frac{1}{2}$?


  $\frac{1}{2}$
• Which angle in triangle DEF corresponds to angle A in triangle ABC if $\triangle ABC \sim \triangle DEF$?


  $\angle D$
• What is the ratio of side KL in triangle KLM to side XY in triangle XYZ if KL = 3 and XY = 6?

  $\frac{1}{2}$