If the angles of a triangle are in ratio 3:7:10 show that triangle is right angled
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Answered by
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Let the 1st angle be 3x
The 2nd angle be 7x
The 3rd angle be 10x
Sum of angles of triangle is 180°
3x + 7x + 10x = 180°
20x= 180
x = 180/20
x= 9
1st angle = 3x =3*9 = 27°
2nd angle = 7x = 7*9 = 63 °
3rd angle = 10x = 10*9 = 90°
1 angle is 90° . So, it is a right angled triangle.
Answered by
25
Let the 1st angle be 3x
The 2nd angle be 7x
The 3rd angle be 10x
Sum of angles of triangle is 180°
3x + 7x + 10x = 180°
20x= 180
x = 180/20
x= 9
1st angle = 3x =3*9 = 27°
2nd angle = 7x = 7*9 = 63 °
3rd angle = 10x = 10*9 = 90°
1 angle is 90°. So, it is a right angled triangle.
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