Question

If k||l, find the value of a and the value of b.

Answer 1

A. a=15, b=20
B. a= 10, b=13.3
C. a=30, b=40
D. not enough information to determine

Answer 2

k?

Answer 3

http://media.education2020.com/evresources/2090473_ea5c6f6a-4c66-46a6-8792-f9e4392a0ad8.png

Answer 4

these are similar triangles

- same angles
- corresponding sides have same ratios. eg a/(15+a) = 40/60

if you don't know where to start, just fiddle about with some ratios and the answer *will* appear

Answer 5

C.
Refer to the Mathematica attachment.