Triangle abc has the angle measures shown.

measure of angle a = (2 x) degrees. measure of angle b = (3 x) degrees. measure of angle c = (4 x) degrees.

which statement is true about the angles?

measure of angle a = 20 degrees
measure of angle b = 60 degrees
angle a and angle b are complementary
measure of angle a + measure of angle c = 100 degrees

"Measure of angle B = 60 degrees"

Step-by-step explanation:

We knnow sum of measure of 3 angles in a triangle are 180 degrees.

Thus, we have:

A + B + C = 180

2x + 3x + 4x = 180

9x = 180

x = 180/9 = 20

So angle A = 2(20) = 40

angle B = 3(20) = 60

angle C = 4(20) = 80

First statement is FALSE as we see angle A is 40.

Second statement is TRUE as we see B is indeed 60.

Third statement is FALSE since A + B = 100, not 90 [complementary means add up to 90]

Fourth Statement is False, since A + C = 120, not 100

A. m<A= 20⁰

Step-by-step explanation:

Just took the test:)

x = 12

y = 1

for the points!