ECZ 2021 · O-Level Paper 1 — Approximations
A learner measured the length of a line to be 2.2 cm. The actual length of the line is 2 cm. Find the absolute error in the learner's measurement.
- A. 0.2cm
- B. 2.2cm
- C. 10cm
- D. 0.1cm
Verified working — step 1
Absolute error asks one thing: how far the measurement sits from the actual value, as a positive distance.The full step-by-step working and final answer are included with Premium — checked against ECZ marking standards.
Original examination question © Examinations Council of Zambia. Worked solution and commentary © G12 Titan — not to be reproduced without permission.
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