lulanahis
lulanahis lulanahis
  • 21-03-2020
  • Mathematics
contestada

Triangle ABE is similar to triangle ACD. AB=2 , AC= y-2 , BE=5, and CD=y-3. Find y.

Respuesta :

jimrgrant1 jimrgrant1
  • 21-03-2020

Answer:

y = [tex]\frac{4}{3}[/tex]

Step-by-step explanation:

Given that the triangles are similar then the ratios of corresponding sides are equal, that is

[tex]\frac{AB}{AC}[/tex] = [tex]\frac{BE}{CD}[/tex], substituting values

[tex]\frac{2}{y-2}[/tex] = [tex]\frac{5}{y-3}[/tex] ( cross- multiply )

5(y - 2) = 2(y - 3) ← distribute both sides

5y - 10 = 2y - 6 ( subtract 2y from both sides )

3y - 10 = - 6 ( add 10 to both sides )

3y = 4 ( divide both sides by 3 )

y = [tex]\frac{4}{3}[/tex]

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