1. The measures of the angles of a triangle are in the extended ratio 3:5:7. What is the measure of

the smallest angle?

a. 12

b. 36

c. 60

d. 84

b) 36

Step-by-step explanation:

ratio of angles = 3:5:7

The angles are 3x, 5x, 7x

Sum of all the three angles of triangle = 180

3x + 5x + 7x = 180

15x = 180

x = 180/15

x = 12

Measure of smallest angle = 3x = 3*12 = 36