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anonymous
 one year ago
PQR is an isosceles triangle with PQ = QR. If mQPR = 40°, what is mPQR?
30°
40°
60°
80°
100°
anonymous
 one year ago
PQR is an isosceles triangle with PQ = QR. If mQPR = 40°, what is mPQR? 30° 40° 60° 80° 100°

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anonymous
 one year ago
Best ResponseYou've already chosen the best response.0For an isosoceles triangle, if two sides are the same length, then the two nonincluded angles are the same measure. A generic picture of that would be: dw:1433438722021:dw As in the two sides marked x are the same length and the angles marked \(\alpha\) are the same measure. Since that is true, see if you can piece together the measure of the angle you need :)

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0dw:1433518361158:dw

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0here is your triangle

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0dw:1433518423861:dw

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0do you know what all angles add up to in a triangle?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0so 40+40=80… 18080=100
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