Three angles in a triangle have a ratio of 4: 5: 9. what is the measure of the smallest angle?

 40°

Step-by-step explanation:

Sum total of a triangle is supplementary that is, 180°

Since the angles are represented in ratios, the smallest is 4

To convert it to angles,

we add the ratios together

ie, 4 + 5 + 9 = 18

Therefore, the smallest  angle with ratio 4 is

                    ⁴/₁₈  x  ¹⁸⁰   =      40°

weres the quetio n

Step-by-step explanation: