Question

A. 1 Angles of a triangle are in ratio 10:6:3 its smallest angle will be A. 20° B. 30° C. 60° D. 100° 6​

Answer 1

The angles of the triangle are in the ratio: 10:6:3

Let the angles be 10x,6x,3x

By Angle sum property,

10x+6x+3x=180

19x=180

x=9.47°

Thus, angles are

10x = 94.7°

6x = 56.82°

3x = 28.41°  

 

Thus, the smallest angle = 28.41°

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Answer 2

From the given question the correct answer is:

B. 30°

the smallest angle is 28.2° this is close to 30°

its smallest angle will be A. 20°

Given :

Angles of a triangle are in ratio 10:6:3

To find:

smallest angle=?

Solution:

sum of all angles is 180

so, 10x+6x+3x=180

                  19x=180

                     x= 9.4

now,10 × 9.4=  94

        6 × 9.4= 56.4

         3×9.4= 28.2

so, the smallest angle is 28.2° this is close to 30°

Hence,  smallest angle will be 30°