If triangle ABC is similar to triangle DEF, and the lengths of sides AB and DE a

Practice Questions

Q1
If triangle ABC is similar to triangle DEF, and the lengths of sides AB and DE are 4 cm and 8 cm respectively, what is the ratio of their areas?
  1. 1:2
  2. 1:4
  3. 2:1
  4. 4:1

Questions & Step-by-Step Solutions

If triangle ABC is similar to triangle DEF, and the lengths of sides AB and DE are 4 cm and 8 cm respectively, what is the ratio of their areas?
  • Step 1: Identify the lengths of the corresponding sides of the similar triangles. Here, AB = 4 cm and DE = 8 cm.
  • Step 2: Find the ratio of the lengths of the sides. This is done by dividing the length of side AB by the length of side DE: 4 cm / 8 cm.
  • Step 3: Simplify the ratio from Step 2. 4 cm / 8 cm simplifies to 1/2.
  • Step 4: To find the ratio of the areas of the triangles, square the ratio of the sides found in Step 3. (1/2)² = 1/4.
  • Step 5: Conclude that the ratio of the areas of triangle ABC to triangle DEF is 1/4.
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