Question

If the angles of a triangle are (3x)', (4x + 5)º and (5x – 17)0, then find the value
of 'x'​

Answer 1

Answer:

Sum of angles of triangles=180°

3x+4x+5+5x-17=180°

12x-12=180°

x=16

Explanation:

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Answer 2

Answer:

Explanation:

let ∠a =3x

∠b=4x+5

and ∠c=5x-17

⇒∠a+∠b+∠c =180°(∵angle sum property)

⇒3x+4x+5+5x-17=180

12x-12 = 180°

12x=180+12

x=192/12

x=16°

⇒∠A=45°  ,∠B=69°  ,∠C=63°

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