Question

Can someone explain this to me? I'm not entirely sure this question has enough information to be solved. Thanks!

Answer 1

Question 1

`DC=AC-AD=20-16=4`

Question 2

By the geometric mean theorem,

`BD^2 = (4)(16)=64 \\ \\ </p><p>BD=8`

Question 3

By the Pythagorean theorem,

`AB^2 = 8^2 + 16^2 \\ \\ AB^2 = 320 \\ \\ AB=8√(5)`

Question 4

By the Pythagorean theorem,

`BC^2 = 8^2 +4^2 \\ \\ BC^2 = 80 \\ \\ BC=4√(5)`