Question

angles of traingle are in the ratio 4:6:5 the traingle is
a) an acute angled triangle
b) An obtuse angled triangle
c)right angled triangle
d) isosceles triangle​

Answer 1

Answer:

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Angles of traingle are in the ratio 4:6:5 the traingle is

a) an acute angled triangle

Answer 2

Answer:

an acute angled triangle

Step-by-step explanation:

Let the angles be 4x, 6x and 5x

4x + 6x + 5x = 180°

15x = 180°

⇒x=12°

So the angles are

4 x 12° = 48°

5 x 12 = 60°

6 x 12° 72°

All the angles are less then 90

So triangle is an acute angled triangle.

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