Question

Two triangles are similar with sides in the ratio 3:5. What is the ratio of their areas?

• A. 3:5
• B. 5:3
• C. 9:25
• D. 25:9

Answer 1

Answer:

C. 9:25

For similar triangles, the ratio of their areas is the square of the ratio of corresponding sides.

Given side ratio = (3:5)

So area ratio:

3^2:5^2 = 9:25

Therefore, the ratio of their areas is 9 : 25.