Question

Check over my work please

Answer 1

Find the value of k in the following figure.

Answer 2

http://curriculum.kcdistancelearning.com/courses/GEOMx-HS-A09/b/assessments/C-ChordsandSecantsinCirclesQuiz/Geometry_7_1_13_Quiz_FINAL_10q.gif

Answer 3

3(3+k)= 5(5+6)
9k = 55
k=6.1

Answer 4

what rule are you using?

Answer 5

3(3+k) = ??

Answer 6

I don't think there is a rule to answer I just distributed.

Answer 7

but like why do you think that 3(3+k)= 5(5+6)? is it obvious from the figure? not for me so there must be a rule (or not if its incorrect)

Answer 8

no that's what they did in the example problem so I followed that.

Answer 9

http://curriculum.kcdistancelearning.com/courses/GEOMx-HS-A09/b/unit07/resources/tutorials/7.A.11/Geom_7.1.11_PropertiesOfSecants.pdf see this is the example

Answer 10

but teacher probably said some rule lol so if in example picture looks similar you can write that equation (in my school i had to prove all the steps lol) however you solved it incorrectly
3(3+k)= 5(5+6)
3*3+3*k=5*5+5*6
9+3k=25+30
9+3k=55

Answer 11

SO 15.3??

Answer 12

yeah [if the equation is correct one :D]