Please help!!
If the cos of angle x is 8 over 17, and the triangle was dilated to be two times as big as the original, what would be the value of the cos of x for the dilated triangle? Hint: Use the slash symbol ( / ) to represent the fraction bar and enter the fraction with no spaces.

Question

Please help!!
If the cos of angle x is 8 over 17, and the triangle was dilated to be two times as big as the original, what would be the value of the cos of x for the dilated triangle? Hint: Use the slash symbol ( / ) to represent the fraction bar and enter the fraction with no spaces.

ganeshie8 · Answer

assume its a right triangle

ganeshie8 · Answer

after dilation, the sides will be 2 times longer  :  ` 2*8x`,  `2*17x`

ganeshie8 · Answer

take the cos ratio again :  

cos =  $\dfrac{2*8x}{2*17x}   =   \dfrac{\not 2*8\not x}{\not2*17 \not x} = \dfrac{8}{17}$

ganeshie8 · Answer

So, the ratio didnt change.  looks the cos ratio is not affected by dilation ?

anonymous · Answer

it's supposed to be in fraction, so should I just put not effected?

ganeshie8 · Answer

Nope.

ganeshie8 · Answer

just put the old fraction

anonymous · Answer

ah! Ok! Thank you very much!

ganeshie8 · Answer

just put $\dfrac{8}{17}$  okay ?

ganeshie8 · Answer

np.. u wlc :)