Respuesta :

the answer is 5.2mm, do A squared + B squared  = C squared

the base is 3cm but you need to divide that by 2 to get to the mid point

so 3 /2  =1.5 cm


 now do 1.5^2 + 5^2 = c^2

2.25 +25 = 27.25^2  now take square root of 27.25  to get slant height

5.22mm round answer as necessary

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