Question

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Answer 1

40, 60, 80

Explanation:

Let the angles be :

2x, 3x & 4x

2x + 3x + 4x = 180

=> 9x = 180

=> x = 180 ÷ 9 = 20

2x = 2 × 20 = 40

3x = 3 × 20 = 60

4x = 4 × 20 = 80

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Answer 2

Answer:

Let all the ratios of the angles of the triangle be 'x', then,

we already know that,

sum of all the angles of a triangle measures 180 °

∴  2$x$ + 3$x$ + 4$x$ = 180°

⇒ 9$x$ = 180

⇒ $x$ = $\frac{180}{9}$

⇒ $x$ = 20°

∴ The angles of the triangle is ( 2$x$ = 2 × 20 = 40)

                                                ( 3$x$ = 3 × 20 = 60)

                                                ( 4$x$ = 4 × 20 = 80)  , respectively

Answer is Option (d) 40, 60, 80

Explanation: