Question

In right angle triangle acute angle tringle in ratio 4:5 find angle of triangle in degree

Answer 1

Correct Question:- In right angle triangle two acute angle triangle are in ratio 4:5 find angle of triangle in degree.

Answer :-

Let the two acute angle be 4x and 5x respectively.

4x + 5x + 90 = 180° [ ASP of traingle ]

9x + 90 = 180°

9x = 180 - 90

9x = 90

x= 90/9

x = 10

Therefore two acute angle 4x = 4(10) = 40° and 5x = 5(10) = 50°

Answer 2

Answer:

Let the first angle of triangle be 4x .

Let the second angle of triangle be 5x .

Because of the right triangle third angle be 90°..........[Given]

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A.T.Q

4 x+ 5 x+9 0 =180°..[Angle sum property]

9x + 90 = 180

9x = 180 - 90

9x = 90°

x = 90/9

x = 10°

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So, the first angle = 4x = 4(10) = 40°

Second angle = 5x = 5(10) = 50°