Estimating & Measuring Angles – Worksheet A The worksheet is in 2 sizes.

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Estimating & Measuring Angles 1) Estimate the angle before you measure. 2) Center the protractor on the vertex (corner). 3) Line up 0 with the base line. 4) Count up from 0 until you reach the second line. Example: 30° Base line

Estimating & Measuring Angles ① 1) Estimate the angle before you measure. 2) Center the protractor on the vertex (corner). 3) Line up 0 with the base line. 4) Count up from 0 until you reach the second line. Estimate: Measurement: 5) Example: 30° 6) Estimate: Measurement: 45° Base line Estimate: Measurement: 1) 2) Estimate: Measurement: Estimate: Measurement: 7) Base line Base line Estimate: Measurement: 3) 8) Estimate: Measurement: 9) Estimate: Measurement: 4) Estimate: Measurement:

Estimating & Measuring Angles ① 40° 60° 10° 130° 35° 170° 70° 20° 1) Estimate the angle before you measure. 2) Center the protractor on the vertex (corner). 3) Line up 0 with the base line. 4) Count up from 0 until you reach the second line. Estimate: Measurement: 5) Example: 30° 6) Estimate: Measurement: 45° Base line Estimate: Measurement: Estimate: Measurement: 1) 2) Estimate: Measurement: 7) Base line Base line Estimate: Measurement: 3) 8) Estimate: Measurement: 9) Estimate: Measurement: 4) Estimate: Measurement:

Estimating & Measuring Angles ② Estimate: Measurement: 40° 75° 110° 105° 145° 200° 320° 275° 60° 300° 335° 1) 2) Estimate: Measurement: Estimate: Measurement: 3) Estimate: Measurement: 5) 6) 4) Estimate: Measurement: Estimate: Measurement: 8) Estimate: Measurement: 9) 10) 7) Estimate: Measurement: Estimate: Measurement: Estimate: Measurement: 11) Estimate: Measurement:

Estimating & Measuring Angles ① 1) Estimate the angle before you measure. 2) Center the protractor on the vertex (corner). 3) Line up 0 with the base line. 4) Count up from 0 until you reach the second line. Estimate: Measurement: 5) Example: 30° 6) Estimate: Measurement: 45° Base line Estimate: Measurement: 1) 2) Estimate: Measurement: Estimate: Measurement: 7) Base line Base line Estimate: Measurement: 3) 8) Estimate: Measurement: 9) Estimate: Measurement: 4) Estimate: Measurement:

Estimating & Measuring Angles ② Estimate: Measurement: 1) 2) Estimate: Measurement: Estimate: Measurement: 3) Estimate: Measurement: 5) 6) 4) Estimate: Measurement: Estimate: Measurement: 8) Estimate: Measurement: 9) 10) 7) Estimate: Measurement: Estimate: Measurement: Estimate: Measurement: 11) Estimate: Measurement:

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