Find the mesaure of the angle of a triangle if its angle is 80 and the other two angle are in the 3ratio7.help me
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Given one angle =80°
Therefore We know that Measure of the angles of a triangle =180°
=3x + 7x+80°=180°
=10x +80°=180°
=10x =180°- 80°
=10x = 100°
= x= 100÷10
=x=10 °
The angles are 10 × 3 and 10 × 7 =30°and 70°.
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