Question

The measures of the angles of a triangle are (3x – 100)°, (x – 10)°, and (x – 10)°.

Solve for x and find the degree measurement of the largest angle in the triangle.

x =

The largest angle in the triangle is
degrees.

Answer 1

x = 60

largest angle = 80°

Explanation:

the sum of all three angles in a triangle = 180°

(3x - 100) + (x - 10) + (x - 10) = 180

simplify:

5x = 300

x = 60

angles are 80°, 50°, and 50°