Look at the two triangular sign boards below.
Which pair of equations is correct?

x = 4 and y = 20

x = 14 and y =14

x = 78 and y = 54

x = 8 and y = 14

Question

Look at the two triangular sign boards below. 
Which pair of equations is correct? 

 x = 4 and y = 20 

 x = 14 and y =14 

 x = 78 and y = 54 

 x = 8 and y = 14

anonymous · Answer

attachment

markrijckenberg · Answer

I think you need to turn the first triangle 180 degrees so that the first triangle correctly overlaps the second triangle. Then solve x and y separately.

anonymous · Answer

can you explain with answer plz

markrijckenberg · Answer

After turning the first triangle 180 degrees:   6x + 30 = 78 => 6x = 48 => x = 8  Same procedure for y.

anonymous · Answer

oh okay so whats my answer?

anonymous · Answer

are those triangles congruent?

markrijckenberg · Answer

Take a closer look. I already gave you the answer. There is only one answer in the list where x=8

anonymous · Answer

Then, simply set up your equations (4y-2) = 54, (6x+30) = 78,

anonymous · Answer

okay yaya got it right thanks :)

anonymous · Answer

u welcom