The first angle in a triangle is three times that of a second angle. The second angle is two times that of the third angle. The ratio of the angles in the triangle is 1:2:3.
When two rays are joined at one point, they produce the geometric shape known as an angle. The vertex is the shared point between the two rays, which are known as the arms or sides of the angle. When two rays meet at a point, they make an angle. An "angle" is the term used to describe the "opening" between these two rays, and it is symbolised by the symbol. Angles are typically expressed as 60°, 90°, etc. and are measured in degrees.
Given,
A first angle of let x
2x = 2nd angle
3x = 3rd angle
Angle sum = 180
x + 2x + 3x = 180
6x = 180
Dividing,
x = 30°
2x = 2(30)
2nd angle = 60
3x = 3(30)
3rd angle = 90
30°, 60°, and 90° are the three angles.
Ratio 1:2:3
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