Question

18. Angles of a triangle are in the ratio 4:6:5. The triangle is:
(a) an acute angled triangle
(c) right angled triangle
(d) isosceles triangle
(b) an aobtuse angled triangle​

Answer 1

Step-by-step explanation:

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

4x+6x+5x=180

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15x=180

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⇒x=12

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So the angles are

4×12

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=48

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5×12

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=60

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6×12

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=72

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All the angles are less then 90

So triangle is an acute angled triangle.

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Answer 2

Answer:Acute angled triangle

Step-by-step explanation:

The angles are 48, 72, 60

You can take that out by solving the ratios by breaking them in 4x,6x,5x and adding them to 180