Question

9. Find d, the distance across the lake.

75 ft
225 ft
d
90 ft


Please answer last time I tried one of these I failed

Answer 1

• 120 ft

Explanation:

Use ratios of corresponding sides since the triangles are similar:

• d/90 = (225 + 75)/225
• d /90 = 300/225
• d/90 = 12/9
• d = 120