Question

between 7 and 8 inches,between 8 and 9 inches,between 9 and 10 inches,between 10 and 11 inches

Explanation:

Step1: Observe the ruler measurement

The left - most point of the triangle aligns with 0 on the ruler, and the right - most point is between 9 and 10 inches.

Answer:

Between 9 and 10 inches