Answer:
The third angle is 136
Explanation:
The three angles of a triangle add to 180
27+17+x = 170
Combine like terms
44+x = 180
Subtract 44 from each side
44+x-44 =180-44
x =136
136⁰
Three angles of a Triangle always addvup to 180⁰
27⁰ + 17⁰ + ×⁰= 180⁰
44⁰ + x⁰ = 180⁰
× = 180 - 44
= 136⁰
Therefore Angle 3 = 136⁰
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