Texas Math Models

Try “number line” or “4.5D”

Reading a protractor

both rays, one scale, subtract

G4

Angle TUV is shown on the protractor. What is its measure?0180301506012090901206015030180025°120°TVUboth rays crossed the OUTER set of numbersthe angle is the distance between the raysU is the vertex, the letter in the middle120° − 25° = 95°same set of numbers for both rays, every timeplacing it yourself? put a ray on 0 and read onceestimate against a square corner before you read anything

How this one works

How

see where each ray crosses, both on the SAME row of numbers, then subtract.

Best when

you have a protractor and an angle to measure.

The same problem, other ways