GB-28-05-001 · Algebraic angles

The angles of a triangle are x°, (3x + 10)° and 74°. Find x.

Angle Facts with Algebra Booklet p. 10 & p. 73

Method

1) Form equation using angles in a triangle add up to 180°

2) Collect like terms and kill, kill to solve for x

Worked Example (GB-28-05-001)

Booklet p. 10 — Form linear equation, collect like terms, and "Kill, kill" to solve for

x

1) x + 3x + 10 + 74 = 180.

2) 4x = 96.

3) 24