Question

What is the value of a° in the figure shown below?

Select one:

A. 15o

B. 18o

C. 22o

D. 30o

E. 45o

Answer 1

B) a = 18°

Explanation:

Sum of all angles of the triangle = 180°

a + 3a + 6a = 180

10a = 180

a = 180/10

a = 18°