Answer :

It is given to us –


The angles of a triangle are in the ratio 2: 3: 4.


We have to find the angles of the triangle.


Let us draw a ΔABC. Since the angles of the triangle is in the ratio 2: 3: 4, we can say that


A:B:C = 2:3:4


Let us assume,


A = 2x, B = 3x, and C = 4x - - - - (i)


We know that the sum of the three angles of a triangle is equal to 180°.


A + B + C = 180°


2x + 3x + 4x = 180° [From equation (i)]


9x = 180°


x = 20°


Substituting the value of x = 20° in equation (i), we get


A = 2x = 2 × 20° = 40°,


B = 3x = 3 × 20° = 60°, and


C = 4x = 4 × 20° = 80°


Thus, the angles of the triangle are 40°, 60°, and 80°.


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