marcoduuuh
If XYZ is an isosceles triangle with base , what is the measure of Z?
(Picture below.)



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marcoduuuh
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marcoduuuh
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Isosceles means all sides are the same right?

alexeis_nicole
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two sides are the same

alexeis_nicole
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dw:1358999563735:dw

marcoduuuh
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What is the formula to find it?

freakshow
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Answer is 60 degrees.

KenField
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The answer would be 30 degrees, because both angle Z and angle Y have to be 30 (to equal 60).

marcoduuuh
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Thank you @KenField.

marcoduuuh
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Oh wait, it's 60 lol.

freakshow
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It is 60 because 120 is the external angle and since sum of Y + Z is equal to the external angle and Y=Z since triangle is isosceles,therefore Z = 60.

KenField
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OH my bad. Didn't even think of the external angle haha.