Question

Question #ab4ec

Answer 1

`10 ft`

Explanation:

Since the angle of incidence equals to the angle of reflection, right triangle formed by mirror and Jerry's body is similar to the right triangle formed by a mirror and basketball poll.

Therefore, the height of Jerry's body (`b=6`) relates to its distance to a mirror (`m_1=3`) as the height of the basketball poll (`h` - unknown) related to to its distance to a mirror (`m_2=5`).

Hence, the following equation:
`6/3 = h/5`,
from which follows:
`h=10`.