Question

FAN + MEDAL 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.

Answer 1

the cosine of an angle doesn't change, because the angle doesn't change.
In other words, 2/4 is the same thing as 1/2.

Answer 2

can you show me ?

Answer 3

@SolomonZelman

Answer 4

@satellite73

Answer 5

@SolomonZelman Well said

Answer 6

@Mokeira ?

Answer 7

can you help

Answer 8

Let me try and illustrate

Answer 9

uuuuh...my network has refreshed. I have to start all over

Answer 10

You have the cos so we can sketch the triangle

When it is doubled it becomes

Now, get cos x of this new triangle
\[\cos x=\frac{ 16 }{ 34 }\]
This fraction can be simplified
\[\frac{ 8 }{ 17 }\]

Answer 11

thanks

Answer 12

my network jammed...sorry for taking tooooooo long