In the triangle,

\angle B

20 ^ { \circ }

more than

\angle A

, and

\angle C

20 ^ { \circ }

less than twice

\angle A

. Find each angle in the triangle. ( Hint: The sum of the angles in a triangle is

180 ^ { \circ }

.) $In the triangle, \angle B is 20 ^ { \circ } more than \angle A , and \angle C is 20 ^ { \circ } less than twice \angle A . Find each angle in the triangle. ( Hint: The sum of the angles in a triangle is 180 ^ { \circ } .) A) \angle A = 60 ^ { \circ } , \angle B = 40 ^ { \circ } , \angle C = 80 ^ { \circ } B) \angle A = 55 ^ { \circ } , \angle B = 75 ^ { \circ } , \angle C = 50 ^ { \circ } C) \angle A = 35 ^ { \circ } , \angle B = 55 ^ { \circ } , \angle C = 90 ^ { \circ } D) \angle A = 45 ^ { \circ } , \angle B = 65 ^ { \circ } , \angle C = 70 ^ { \circ } E) \angle A = 70 ^ { \circ } , \angle B = 50 ^ { \circ } , \angle C = 60 ^ { \circ }$
A)

\angle A = 60 ^ { \circ } , \angle B = 40 ^ { \circ } , \angle C = 80 ^ { \circ }

\angle A = 55 ^ { \circ } , \angle B = 75 ^ { \circ } , \angle C = 50 ^ { \circ }

\angle A = 35 ^ { \circ } , \angle B = 55 ^ { \circ } , \angle C = 90 ^ { \circ }

\angle A = 45 ^ { \circ } , \angle B = 65 ^ { \circ } , \angle C = 70 ^ { \circ }

\angle A = 70 ^ { \circ } , \angle B = 50 ^ { \circ } , \angle C = 60 ^ { \circ }

Solve the System {b+2c=10−aa+c=11−2b2a+b+c=11\left\{ \begin{array} { l } b + 2 c = 10 - a \\a + c = 11 - 2 b \\2 a + b + c = 11\end{array} \right.⎩⎨⎧​b+2c=10−aa+c=11−2b2a+b+c=11​

Multiple Choice

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Solve the System $\left\{ \begin{array} { l } b + 2 c = 10 - a \\a + c = 11 - 2 b \\2 a + b + c = 11\end{array} \right.$

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