Question

Find z.

Answer 1

http://curriculum.kcdistancelearning.com/courses/GEOMx-HS-CA10/a/assessments/T-RightTrianglesPythagoreanTheoremQuiz/Geometry_4.3_Quiz_18q.gif

Answer 2

5

10 root 3

15

10

Answer 3

my guess is 10 root 3 but can someone check

Answer 4

i got a different answer

Answer 5

hmmm

Answer 6

so i am right ?

Answer 7

looks like it

Answer 8

The correct answer is 10.
cos 30 = 5 * sq.rt3/Z
\[Z=(5\sqrt{3})/\cos 30\]
\[\cos 30=\sqrt{3}/2\]
\[Z=(5\sqrt{3}\times 2)/\sqrt{3}=10\]