Question

if the sizes of the angles of a triangle are 3x,4x and 5x, find the smallest angle of the triangle.

Answer 1

Answer:

45DEGREE

Step-by-step explanation:

3X+4x+5x=180

12x=180

X=15

3X=45

4X=60

5X=75

HENCE SMALLEST ANGLE IS 45

Answer 2

Given :

• First Angle = 3x

• Second Angle = 4x

• Third Angle = 5x

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To Find :

• Smallest Angle

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Solution :

We know that, Angle sum of property :

⇒ Sum of angles = 180°

⇒ 3x + 4x + 5x = 180°

⇒ 3x + 9x = 180°

⇒ 12x = 180°

⇒ x = 180°/12

⇒ x = 15°

➜ Smallest Angle = 3x = 3(15) = 45°