Triangle ABC has the angle measures shown. Which statement is true about the angles?
mzA=20°
mzA=(2x)
m2 = (5x)"
m2 = (11)
mZB=60
Aand 2B are complementary
OmZA+mZC=120

m∠A = 20°

Step-by-step explanation:

Triangle ABC has the following angle measures:

We know that the addition of the angles of a triangle makes 180°, therefore:

m∠A + m∠B + m∠C = 180°

Replacing with data and solving for x:

2x + 5x + 11x = 180

18x = 180

x = 180/18

x = 10°

Which makes the angles:

m∠A = 2*10 = 20°

m∠B = 5*10 = 50°

m∠C = 11*10 = 110°

answer: c is correct, a regular pentagon