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Komok [63]
4 years ago
14

Need help with this problem

Mathematics
1 answer:
Schach [20]4 years ago
6 0
Here we are:

Triangle PQR is equilateral, all the angles are 60, this means that triangle PSR is an isosceles triangle. 180-90=90  90/2=45  60-45=15
B=15

Hope this helps :) 
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