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December 28, 2014

December 28, 2014

Posted by **Ommprakas panda.** on Tuesday, March 13, 2012 at 11:26am.

- algebra -
**Damon**, Tuesday, March 13, 2012 at 11:33amso they are all equal to each other. Go ahead and do it.

4 x + y = y + 2

so

x = 1/2

x+4 = 4 1/2

y+2 = 4 1/2

y = 2 1/2

so

4x + y = 4 1/2 check all sides are 4 1/2

- algebra -
**Anonymous**, Tuesday, March 13, 2012 at 11:47amAn equilateral triangle is a triangle in which all three sides are equal.

In this case :

x + 4 = 4 x + y = y + 2

x - 4 x + 4 = y

- 3 x + 4 = y

y = - 3 x + 4

4 x + y = y + 2

4 x = y - y + 2

4 x = 2 Divide both sides by 4

x = 2 / 4

x = 1 / 2

y = - 3 x + 4

y = - 3 * 1 / 2 + 4

y = - 3 / 2 + 4

y = - 3 / 2 + 8 / 2

y = 5 / 2

first side:

x + 4 = 1 / 2 + 4 = 1 / 2 + 8 / 2 = 9 / 2 = 4.5 cm

second side :

4 x + y = 4 * 1 / 2 + 5 / 2 = 4 / 2 + 5 / 2 = 9 / 2 = 4.5 cm

third side :

y + 2 = 5 / 2 + 2 = 5 / 2 + 4 / 2 = 9 / 2 = 4.5 cm

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