Question

I need help please! Explain why the triangles are similar. Then find the value of x.

http://tinypic.com/view.php?pic=309o7wx&s=8#.UwbSJ5_TnqA

Answer 1

short version crossing parallel lines; angles are equal

Answer 2

How do you find the value of x?

Answer 3

#2 6/8 = 10/x

Answer 4

Thank you! :) Could you possible explain the first problem as well?

Answer 5

same principle the angles are the same
set up the ratio and solve

Answer 6

Oh! I get it now. Ok. Thank you so much. :)

Answer 7

7/12 = x/8
solve for x

Answer 8

double check the ratios but the principle is correct

Answer 9

Ok. So would the answer for the first one be 4.66 repeated or 4.7 rounded up?

Answer 10

7/12 = x/8
cross multiply
x = 56/12 = yes please check that I set it up correctly

Answer 11

8/x = 6/10 or 6/8 = 10/x

Answer 12

never mind either way is correct