Answer: B.
Explanation:
We will use the knowledge of a triangle's angles adding up to 180 degrees. We will create an equation and solve for x. Then we will substitute this value back into the expressions and find the angle measurement.
Given:
(3x + 1) + (5x - 7) + (11x - 4) = 180
Combine like terms:
19x - 10 = 180
Add 10 to both sides of the equation:
19x = 190
Divide both sides of the equation by 19:
x = 10
Substitute back in:
(3x + 1) (5x - 7) (11x - 4)
(3(10) + 1) (5(10) - 7) (11(10) - 4)
(30 + 1) (50) - 7) (110) - 4)
(31) (43) (106)
Answer: B