3 years ago

Can someone please help me with this

Mathematics

1 answer:

Archy [21]3 years ago

4 0

Step-by-step explanation:

By Exterior Angle theorem,

(5y + 3)° + (4y + 8)° = 146°

=> 9y + 11 = 146

=> y = 15.

Hence Angle ABC = (4y + 8) = [4(15) + 8]° = 68°.

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