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Viviana Hansen
Mathematics
22 June, 23:45
Angle EBC=3r+10
Angle ABE=2r-20
Find angle EBF
+2
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Isabelle French
23 June, 00:15
0
Solution:
The angles EBC & ABE form a linear pair.
So, ∠EBC + ∠ABE = 180
3r+10+2r-20 = 180
5r-10=180
5r=180+10
5r=190
r=190/5
r=38
Substitude
Since, ∠EBF = ∠ABE
∠EBF = 2r-20
∠EBF = 2 (38) - 20
∠EBF=76-20
∠EBF=56 (Answer)
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