Mrfootballman97
One angle of an isosceles trapezoid has measure 57. Find the measures of the other angles.
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MathLegend
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Is there a picture to go with this? @Mrfootballman97
MathLegend
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Do you know if it is one of the base angles? Or is it the angle at the top of the triangle?
Mrfootballman97
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Nope
MathLegend
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Trapezoids sum.. I believe is 360
MathLegend
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Interior angles sum is 360... right?
Mrfootballman97
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ahhhhhh ok then. So could the angles be anything as long as they add up to be 360?
MathLegend
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They can't be any number... we would have to know what Isosceles is.
MathLegend
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|dw:1354423088562:dw|
MathLegend
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Opposite angles are Supplementary
Mrfootballman97
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one guy said this: Since it is an isosceles trapezoid, the base angles are the same.
By property of // lines, you can find c and b.
^ (sum of interior angle of // lines = 180 degrees)
Mrfootballman97
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Callisto was the person
MathLegend
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He is correct
Mrfootballman97
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Yup
MathLegend
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Being that opposite angles are supplementary... we know that Supplementary is 180, right?
MathLegend
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180 - 57 = 123
MathLegend
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|dw:1354423249035:dw|
Mrfootballman97
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so 123 is the top angles measure?
Mrfootballman97
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Oh i see THANKS!
MathLegend
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Yes, and if you notice they sum to 360 :)
Mrfootballman97
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Yup! Thank You!