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Yanka [14]
2 years ago
10

25 points! Please help! Will give brainliest to correct answer!

Mathematics
2 answers:
Elena L [17]2 years ago
6 0

Answer:

I think AC is 6.

Step-by-step explanation:

This looks like an equilateral triangle so that means because there is a 3 on  one side of the line it should be the same on the other side of the line so 3 x 2 = 6.

Angelina_Jolie [31]2 years ago
4 0

Step-by-step explanation:

triangle \: abd \\ using \: pythagoras \: theorem \\  {hyp}^{2} =  {adj}^{2} +  {opp}^{2}  \\   {12}^{2}  =  {3}^{2} +  {opp}^{2}  \\ 144 = 9 +  {x}^{2}  \\ 144 - 9 =  {x}^{2}  \\ 135 =  {x}^{2} \\ take \: the \: square \: of \: both \: sides \\x = 11.62

using the opposite side of triangle and

using \: pythagoras \: theorem \\  {16}^{2} =  {11.62}^{2} +  {x}^{2} \\ 256 = 135.02 +  {x}^{2}  \\ 256 - 135.02 =  {x}^{2}  \\ 120.198 =  {x}^{2}  \\ take \: the \: roots \: of \: both \: sides \\ x = 10.96

therefore the length of line AC

= 3 + 10.96 \\  = 13.96

hope this helps

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