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2 years ago

Angle EBC=3r+10 Angle ABE=2r-20 Find angle EBF

Mathematics

1 answer:

Brilliant_brown [7]2 years ago

7 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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