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HW HELP?!?!?!?!?!? and please explain step by step?
An exterior angle of a triangle measures 117 degrees. Its remote interior angles measure (2y to the power of 2 + 7) degrees and (61-y to the power 2) degrees. Find the value of y.
Explain it then if im stupid
1 Answer
- ?Lv 78 years agoFavorite Answer
The sum of the remote interior angles is equal to the exterior angle
(2y^2 + 7) + (61 - y^2) = 117
Combine like terms
y^2 + 68 = 117
Subtract 68 from both sides
y^2 = 49
Take the square root of both sides
y = ±7
Since the y term was squared in both interior angles both -7 and 7 are valid solutions
m09282013
