Multiple choice

Triangle ABC is similar to triangle PQR. If AB = 5 cm. and PQ = 3 cm. what is the ratio of the area of triangle ABC to the area of triangle PQR respectively?

  1. $5:3$
  2. $25:9$
  3. $3:5$
  4. $9:25$
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

For similar triangles, the ratio of areas equals the square of the ratio of corresponding sides. Since AB/PQ = 5/3, the area ratio is (5/3)^2 = 25/9, or 25:9. Option A incorrectly uses the linear ratio directly, while options C and D are reciprocals of the correct ratio.

Keep practicing — related questions