Question

The polygons are similar. Find the value of each variable.

Answer 1

• z = 2

Explanation:

Similar figures have equal ratios of corresponding sides:

• z / (z + 4) = 3/ 9
• 9z = 3(z + 4)
• 9z = 3z + 12
• 9z - 3z = 12
• 6z = 12
• z = 2