Question

The ratio of sides in two similar triangles is 4:9. What is the ratio of their perimeters?

• A. $2:3$
• B. $1:2$
• C. $3:8$
• D. $4:9$

Answer 1

The correct option is D $4:9$

Ratio of sides of similar triangles is same as the ratio of perimeters of the triangles.
Thus, the ratio of perimeters of similar triangles $=4:9$