Question

If the angles, in degrees, of a triangle
are x, 3x + 20 and 6x, the triangle
must be
(1) Right
(2) Isosceles
(3) Obtuse
(4) Acute​

Answer 1

Answer:

acute

Triangle

By sum of triangle sum property

Answer 2

Answer:

sum of all angles = 180°

putting we get,

x+3x+20+6x = 180°

10x = 160

x = 16°

so, angles = 16° , 3*16+20 = 68° & 6*16 = 96°

The ∆ is obtuse ∆ since one angles is above 90° .

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