1.

The angles of a triangle are in the ratio 1:3:5. Find the angles.

A. \[60{}^\circ ,\text{ }40{}^\circ ,\text{ }80{}^\circ \]
B. \[20{}^\circ ,\text{ }60{}^\circ ,\text{ }100{}^\circ \]
C. \[30{}^\circ ,\text{ }90{}^\circ ,\text{ }50{}^\circ \]
D. \[30{}^\circ ,\text{ }60{}^\circ ,\text{ }90{}^\circ \] 
Answer» C. \[30{}^\circ ,\text{ }90{}^\circ ,\text{ }50{}^\circ \]


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