Question

Geometry question. picture attached

Answer 1

how did u get 12

Answer 2

i didnt do it, that's the answer

Answer 3

our practice packet has the answers. but we have to do the work

Answer 4

Set it up as x /15 = 4 /5, where 15 and 5 are the lengths of the biggest and smallest triangles, respectively. And x and 4 are the heights of each. Solving for x you get
x = (4/5)*15 = 12.

Answer 5

ok good :) you familiar with similar triangles ?

Answer 6

you don't need to do similar triangles for this question

Answer 7

thanks @ajmayberry

Answer 8

ok then how you going to do it ?

Answer 9

you set up a proportion. ^ look at ajmayberry's response.

Answer 10

because there are 3 triangles, so you use two of them. the one that you know the measurements, and a triangle that u need to find something.

Answer 11

setting up proportion is the method of "similar triangles"

Answer 12

yes, but here we are not using tan, cos, or sin

Answer 13

ok if you are fine, its fine.