If triangle DEF is similar to triangle XYZ and the ratio of their corresponding

Practice Questions

Q1
If triangle DEF is similar to triangle XYZ and the ratio of their corresponding sides is 2:3, what is the ratio of their areas?
  1. 2:3
  2. 4:9
  3. 3:2
  4. 9:4

Questions & Step-by-Step Solutions

If triangle DEF is similar to triangle XYZ and the ratio of their corresponding sides is 2:3, what is the ratio of their areas?
  • Step 1: Understand that triangle DEF is similar to triangle XYZ, which means their shapes are the same but their sizes are different.
  • Step 2: Note the ratio of their corresponding sides, which is given as 2:3.
  • Step 3: Recognize that to find the ratio of their areas, you need to square the ratio of their corresponding sides.
  • Step 4: Calculate the square of the ratio 2:3. This means you take (2/3) and multiply it by itself: (2/3) * (2/3).
  • Step 5: Perform the multiplication: 2 * 2 = 4 (for the numerator) and 3 * 3 = 9 (for the denominator).
  • Step 6: Write the result as a fraction: the ratio of the areas is 4/9.
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